CVE-2025-43511

MEDIUMPre-NVD 6.56.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 6.5 from GitHub Security Advisory published 2025-12-12. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS, GitHub Security Advisory
6.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.2, iOS 18.7.2 and iPadOS 18.7.2, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, visionOS 26.2, watchOS 26.2. Processing maliciously crafted web content may lead to an unexpected process crash.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity65% × 45%
Impact severity (EG Severity): CVSS 6.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
38th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (6.5): severity, escalated by confirmed exploitation. This CVE's 6.5 is its impact severity (EG Severity), not escalated.

EG Severity
6.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

December 12, 2025

Last Modified

October 7, 2026

Advisory Details (10)

Auto-updated Jul 16, 2026
Patch available. Sources: redhat.
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP So

https://access.redhat.com/errata/RHSA-2026:13845
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Serv

https://access.redhat.com/errata/RHSA-2026:11814
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.6 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:11329
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:10702
Web page

About the security content of Safari 26.2 - Apple Support

https://support.apple.com/en-us/125892
Web page

About the security content of visionOS 26.2 - Apple Support

https://support.apple.com/en-us/125891
Web page

About the security content of watchOS 26.2 - Apple Support

https://support.apple.com/en-us/125890
Web page

About the security content of macOS Tahoe 26.2 - Apple Support

https://support.apple.com/en-us/125886
Web page

About the security content of iOS 26.2 and iPadOS 26.2 - Apple Support

https://support.apple.com/en-us/125884
Web page

About the security content of iOS 18.7.2 and iPadOS 18.7.2 - Apple Support

https://support.apple.com/en-us/125633

Patch Availability(12)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuwebkit2gtk-driver (2.52.3-0ubuntu0.24.04.1) @ noble2026-10-07ubuntu
redhatwebkitgtk4-0:2.52.3-1.el7_92026-06-01redhat
redhatwebkit2gtk3-0:2.52.3-1.el9_02026-05-20redhat
redhatwebkit2gtk3-0:2.52.3-1.el9_82026-05-19redhat
redhatwebkit2gtk3-0:2.52.3-1.el9_22026-05-13redhat
redhatwebkit2gtk3-0:2.52.3-1.el8_42026-05-11redhat
redhatwebkit2gtk3-0:2.52.3-1.el9_42026-05-07redhat
redhatwebkit2gtk3-0:2.52.3-1.el8_62026-05-05redhat
redhatwebkit2gtk3-0:2.52.3-1.el8_82026-04-29redhat
redhatwebkit2gtk3-0:2.52.3-1.el9_62026-04-28redhat
redhatwebkit2gtk3-0:2.52.3-1.el8_102026-04-27redhat
redhatwebkit2gtk3-0:2.52.3-0.el9_7.12026-04-22redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(8 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFix by version rangeDependents
webkit2gtk2.32.3-1 ... 2.50.5-1 (219 versions)
  • every version up to 2.50.6-1~deb11u1: fixed in 2.50.6-1~deb11u1
—
wpewebkit2.32.3-2 ... 2.52.5-1 (90 versions)
  • every version on: no fix on record
—
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
webkit2gtk2.40.1-1 ... 2.50.5-1 (134 versions)
  • every version up to 2.50.6-1~deb12u1: fixed in 2.50.6-1~deb12u1
—
wpewebkit2.38.6-1 ... 2.54.1-1 (57 versions)
  • every version on: no fix on record
—
Debian:13(2)
PackageVulnerable rangeFix by version rangeDependents
webkit2gtk2.48.3-1 ... 2.50.6-1~deb12u1 (28 versions)
  • every version up to 2.50.6-1~deb13u1: fixed in 2.50.6-1~deb13u1
—
wpewebkit2.48.3-1 ... 2.54.1-1 (23 versions)
  • every version on: no fix on record
—
Debian:14(2)
PackageVulnerable rangeFix by version rangeDependents
webkit2gtk2.48.3-1 ... 2.50.4-1~deb13u1 (26 versions)
  • every version up to 2.50.5-1: fixed in 2.50.5-1
—
wpewebkit2.48.3-1 ... 2.50.4-1 (10 versions)
  • every version up to 2.50.5-1: fixed in 2.50.5-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 8× in last 7d / 38× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 94 of 223 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 6 repeat rows among the latest 100 are merged into the row they repeat. The 129 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  2. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  3. 2026-10-18 05:33 UTCEG score recompute
  4. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  5. 2026-10-16 16:38 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  6. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  7. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  8. 2026-10-13 16:32 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  9. 2026-10-12 17:04 UTCEG score recompute
  10. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  11. 2026-10-11 20:37 UTCEG score recompute
  12. 2026-10-11 18:48 UTCEG score recompute
  13. 2026-10-11 15:25 UTCEG score recompute
  14. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  15. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  16. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  17. 2026-10-08 17:10 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  18. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  19. 2026-10-07 11:22 UTCEG score recompute
  20. 2026-10-07 11:22 UTCVendor advisory
  21. 2026-10-07 11:22 UTCGHSA enrichmentGHSA-r8ww-q8x3-4wc9 · GitHub CVSS 6.5
  22. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  23. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  24. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  25. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.5% · 37th percentile
Show 69 more
  1. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  2. 2026-09-30 20:24 UTCEG score recompute
  3. 2026-09-30 20:24 UTCVendor advisory
  4. 2026-09-30 20:24 UTCGHSA enrichmentGHSA-r8ww-q8x3-4wc9 · GitHub CVSS 6.5
  5. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  6. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  7. 2026-09-27 13:45 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  8. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  9. 2026-09-26 00:25 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  10. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  11. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  12. 2026-09-21 21:06 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  13. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  14. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  15. 2026-09-17 19:29 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  16. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  17. 2026-09-15 03:09 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  18. 2026-09-14 09:19 UTCOSV refresh
  19. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  20. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  21. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  22. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  23. 2026-09-08 21:59 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  24. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  25. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  26. 2026-09-05 15:28 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  27. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  28. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  29. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  30. 2026-09-01 04:38 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  31. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  32. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  33. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  34. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  35. 2026-08-26 14:45 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  36. 2026-08-26 10:13 UTCOSV refresh
  37. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  38. 2026-08-24 14:16 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  39. 2026-08-24 09:22 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  40. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  41. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  42. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  43. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  44. 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  45. 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  46. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  47. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  48. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  49. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  50. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  51. 2026-08-11 13:41 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  52. 2026-08-10 23:59 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  53. 2026-08-10 00:00 UTCEG score recompute
  54. 2026-08-10 00:00 UTCVendor advisory
  55. 2026-08-10 00:00 UTCGHSA enrichmentGHSA-r8ww-q8x3-4wc9 · GitHub CVSS 6.5
  56. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  57. 2026-08-08 16:36 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  58. 2026-08-08 06:51 UTCEG score recompute
  59. 2026-08-08 06:51 UTCVendor advisory
  60. 2026-08-08 06:51 UTCGHSA enrichmentGHSA-r8ww-q8x3-4wc9 · GitHub CVSS 6.5
  61. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  62. 2026-08-05 19:16 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  63. 2026-08-04 15:09 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  64. 2026-08-04 10:37 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  65. 2026-08-03 10:35 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  66. 2026-08-02 02:26 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  67. 2026-08-01 04:15 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  68. 2026-07-30 16:27 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  69. 2026-07-30 01:30 UTCEPSS rescoreEPSS 0.4% · 34th percentile

Frequently asked(5)

What is CVE-2025-43511?
CVE-2025-43511 is a medium-severity vulnerability; its CVE record was published on December 12, 2025. A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.2, iOS 18.7.2 and iPadOS 18.7.2, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, visionOS 26.2, watchOS 26.2. Processing maliciously crafted web content may lead to an unexpected process crash.
When was the CVE record for CVE-2025-43511 published?
The CVE record for CVE-2025-43511 was published on December 12, 2025. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 7, 2026; the record at its source may have been updated since.
Is CVE-2025-43511 actively exploited?
CVE-2025-43511 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (38th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-43511?
CVE-2025-43511 has a CVSS v3.1 base score of 6.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2025-43511?
A fix for CVE-2025-43511 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-43511 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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