CVE-2025-49795

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2025-06-16. A secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions. This flaw allows an attacker to craft a malicious XML input to libxml2, leading to a denial of service.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.6% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.6%
EPSS %ILE
47th
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 (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-19). 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 low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days 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 low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (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)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

June 16, 2025

Last Modified

October 12, 2026

Advisory Details (7)

Auto-updated Jun 25, 2026
Patch available. Sources: redhat.
Web page

(CVE-2025-49795) Null pointer dereference leads to Denial of service (DoS) (#932) · Issues · GNOME / libxml2 · GitLab

https://gitlab.gnome.org/GNOME/libxml2/-/issues/932
Red HatMentions a patch (unverified)

2372379 – (CVE-2025-49795) CVE-2025-49795 libxml: Null pointer dereference leads to Denial of service (DoS)

Affected: Red Hat Enterprise Linux 10

https://bugzilla.redhat.com/show_bug.cgi?id=2372379
Red HatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2025-49795
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:7519
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2025:19020
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2025:10630

Patch Availability(5)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatlibxml2-main-2.15.2-0.3.hum12026-04-10redhat
redhatlibxml22025-10-27redhat
redhatlibxml2-0:2.12.5-7.el10_02025-07-08redhat
debian:12libxml2—osv
debian:13libxml2—osv

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

(4 across 4 ecosystems)
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
libxml2—
  • every version up to 2.13.9-r0: fixed in 2.13.9-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
libxml2—
  • every version up to 2.13.9-r0: fixed in 2.13.9-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
libxml2—
  • every version up to 2.13.9-r0: fixed in 2.13.9-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
libxml2—
  • every version up to 2.13.9-r0: fixed in 2.13.9-r0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 42× 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 95 of 237 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. 5 repeat rows among the latest 100 are merged into the row they repeat. The 142 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-20 10:08 UTCEG score recompute
  2. 2026-10-20 10:08 UTCVendor advisory
  3. 2026-10-20 10:08 UTCGHSA enrichmentGHSA-gg7j-w83p-fxr9 · GitHub severity HIGH · GitHub CVSS 7.5
  4. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  5. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  6. 2026-10-18 05:29 UTCEG score recompute
  7. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  8. 2026-10-16 16:38 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  9. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  10. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  11. 2026-10-13 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  12. 2026-10-12 20:26 UTCEG score recompute
  13. 2026-10-12 20:26 UTCVendor advisory
  14. 2026-10-12 20:26 UTCGHSA enrichmentGHSA-gg7j-w83p-fxr9 · GitHub severity HIGH · GitHub CVSS 7.5
  15. 2026-10-12 19:57 UTCEG score recompute
  16. 2026-10-12 19:56 UTCVendor advisory
  17. 2026-10-12 19:56 UTCGHSA enrichmentGHSA-gg7j-w83p-fxr9 · GitHub severity HIGH · GitHub CVSS 7.5
  18. 2026-10-12 17:00 UTCEG score recompute
  19. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  20. 2026-10-11 20:33 UTCEG score recompute
  21. 2026-10-11 18:45 UTCEG score recompute
  22. 2026-10-11 15:20 UTCEG score recompute
  23. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  24. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  25. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.6% · 46th percentile
Show 70 more
  1. 2026-10-08 17:10 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  2. 2026-10-08 12:35 UTCOSV refresh
  3. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  4. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  5. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  6. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  7. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  8. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  9. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  10. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  11. 2026-09-27 13:45 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  12. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  13. 2026-09-26 00:25 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  14. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  15. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  16. 2026-09-21 21:06 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  17. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  18. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  19. 2026-09-18 18:33 UTCEG score recompute
  20. 2026-09-18 18:33 UTCVendor advisory
  21. 2026-09-18 18:33 UTCGHSA enrichmentGHSA-gg7j-w83p-fxr9 · GitHub severity HIGH · GitHub CVSS 7.5
  22. 2026-09-18 17:30 UTCEG score recompute
  23. 2026-09-18 17:30 UTCVendor advisory
  24. 2026-09-18 17:30 UTCGHSA enrichmentGHSA-gg7j-w83p-fxr9 · GitHub severity HIGH · GitHub CVSS 7.5
  25. 2026-09-17 19:29 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  26. 2026-09-16 23:50 UTCOSV refresh
  27. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  28. 2026-09-15 03:09 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  29. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  30. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  31. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  32. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  33. 2026-09-08 21:59 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  34. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  35. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  36. 2026-09-05 15:28 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  37. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  38. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  39. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  40. 2026-09-01 04:38 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  41. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  42. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  43. 2026-08-29 00:13 UTCOSV refresh
  44. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  45. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  46. 2026-08-26 14:45 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  47. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  48. 2026-08-24 14:16 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  49. 2026-08-24 09:22 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  50. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  51. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  52. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  53. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  54. 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  55. 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  56. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  57. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  58. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  59. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  60. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  61. 2026-08-12 11:40 UTCOSV refresh
  62. 2026-08-11 13:41 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  63. 2026-08-10 23:59 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  64. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  65. 2026-08-08 16:36 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  66. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  67. 2026-08-05 19:16 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  68. 2026-08-04 15:09 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  69. 2026-08-04 10:37 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  70. 2026-08-03 10:35 UTCEPSS rescoreEPSS 0.5% · 38th percentile

Frequently asked(5)

What is CVE-2025-49795?
CVE-2025-49795 is a high-severity vulnerability; its CVE record was published on June 16, 2025. A NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions. This flaw allows an attacker to craft a malicious XML input to libxml2, leading to a denial of service.
When was CVE-2025-49795 made public?
CVE-2025-49795 was made public on June 11, 2025: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on June 16, 2025. EchelonGraph's copy of the record carries a last-modified date of October 12, 2026; the record at its source may have been updated since.
Is CVE-2025-49795 actively exploited?
CVE-2025-49795 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (47th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-49795?
CVE-2025-49795 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2025-49795?
A fix for CVE-2025-49795 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-49795 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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