CVE-2025-46420

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2025-04-24. the CNA's CVSS baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:redhat, epss, ghsa
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 6.5Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in libsoup. It is vulnerable to memory leaks in the soup_header_parse_quality_list() function when parsing a quality list that contains elements with all zeroes.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
47%
KEV
Not listed

Published

April 24, 2025

Last Modified

July 25, 2026

Advisory Details (10)

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

cve-details

https://access.redhat.com/security/cve/CVE-2025-46420
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2025:7436
redhat Patch Available

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-2025:4624
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update

https://access.redhat.com/errata/RHSA-2025:4609
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.8 Extended Update Support.

https://access.redhat.com/errata/RHSA-2025:4568
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2025:4560
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.2 Advanced Update Support.

https://access.redhat.com/errata/RHSA-2025:4538
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2025:4508
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.4 Extended Update Support.

https://access.redhat.com/errata/RHSA-2025:4440
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2025:4439

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibsoup-3.0-tests (3.6.0-2ubuntu0.3) @ oracular2026-07-26ubuntu
ubuntulibsoup2.4-tests (2.74.3-10ubuntu0.1) @ plucky2026-07-26ubuntu
redhatlibsoup-0:2.72.0-10.el9_6.12025-05-13redhat
redhatlibsoup-0:2.62.3-2.el8_4.42025-05-07redhat
redhatlibsoup-0:2.62.3-2.el8_6.42025-05-07redhat
redhatlibsoup-0:2.62.3-1.el8_2.42025-05-06redhat
redhatlibsoup-0:2.62.3-3.el8_8.42025-05-06redhat
redhatlibsoup-0:2.72.0-8.el9_2.42025-05-06redhat
redhatlibsoup-0:2.62.3-8.el8_102025-05-06redhat
redhatlibsoup-0:2.72.0-8.el9_4.42025-05-05redhat
redhatlibsoup-0:2.72.0-8.el9_0.42025-05-05redhat

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

(6 across 4 ecosystems)
Debian:12(2)
PackageVulnerable rangeFixed inDependents
libsoup2.42.74.3-1 ... 2.74.3-9 (16 versions)——
libsoup33.2.2-23.2.3-0+deb12u1—
Debian:13(2)
PackageVulnerable rangeFixed inDependents
libsoup2.4—2.74.3-10.1—
libsoup3—3.6.4-1—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libsoup2.42.72.0-2 ... 2.74.3-9 (28 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libsoup3—3.6.4-1—

Weakness Classification(1)

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

All Vendor Advisories

(12)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 8× in last 7d / 32× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 197 total refreshes for this CVE.

  1. 2026-09-20 20:15 UTCEPSS rescore
  2. 2026-09-20 20:15 UTCEPSS rescore
  3. 2026-09-18 19:27 UTCEPSS rescore
  4. 2026-09-18 19:27 UTCEPSS rescore
  5. 2026-09-17 19:29 UTCEPSS rescore
  6. 2026-09-16 14:07 UTCEPSS rescore
  7. 2026-09-15 20:54 UTCOSV refresh
  8. 2026-09-15 03:09 UTCEPSS rescore
  9. 2026-09-12 15:00 UTCEPSS rescore
  10. 2026-09-11 14:52 UTCEPSS rescore
  11. 2026-09-11 09:36 UTCEPSS rescore
  12. 2026-09-10 09:34 UTCEPSS rescore
  13. 2026-09-08 21:59 UTCEPSS rescore
  14. 2026-09-07 16:00 UTCEPSS rescore
  15. 2026-09-07 16:00 UTCEPSS rescore
  16. 2026-09-06 13:46 UTCEPSS rescore
  17. 2026-09-05 15:28 UTCEPSS rescore
  18. 2026-09-04 05:06 UTCEPSS rescore
  19. 2026-09-02 14:11 UTCEPSS rescore
  20. 2026-09-01 13:53 UTCEPSS rescore
  21. 2026-09-01 04:38 UTCEPSS rescore
  22. 2026-08-30 19:16 UTCEPSS rescore
  23. 2026-08-30 01:21 UTCEPSS rescore
  24. 2026-08-28 21:40 UTCEPSS rescore
  25. 2026-08-27 19:21 UTCOSV refresh
Show 75 more
  1. 2026-08-27 14:24 UTCEPSS rescore
  2. 2026-08-26 14:45 UTCEPSS rescore
  3. 2026-08-25 13:48 UTCEPSS rescore
  4. 2026-08-24 14:16 UTCEPSS rescore
  5. 2026-08-24 09:22 UTCEPSS rescore
  6. 2026-08-23 00:18 UTCEPSS rescore
  7. 2026-08-21 23:48 UTCEPSS rescore
  8. 2026-08-20 22:54 UTCEPSS rescore
  9. 2026-08-19 17:03 UTCEPSS rescore
  10. 2026-08-18 13:47 UTCEPSS rescore
  11. 2026-08-17 13:46 UTCEPSS rescore
  12. 2026-08-16 14:55 UTCEPSS rescore
  13. 2026-08-16 02:13 UTCEPSS rescore
  14. 2026-08-15 01:29 UTCEPSS rescore
  15. 2026-08-13 21:59 UTCEPSS rescore
  16. 2026-08-12 13:50 UTCEPSS rescore
  17. 2026-08-11 13:41 UTCEPSS rescore
  18. 2026-08-11 09:00 UTCOSV refresh
  19. 2026-08-10 23:59 UTCEPSS rescore
  20. 2026-08-09 13:46 UTCEPSS rescore
  21. 2026-08-08 16:36 UTCEPSS rescore
  22. 2026-08-06 13:46 UTCEPSS rescore
  23. 2026-08-05 19:16 UTCEPSS rescore
  24. 2026-08-04 15:09 UTCEPSS rescore
  25. 2026-08-04 10:37 UTCEPSS rescore
  26. 2026-08-03 10:35 UTCEPSS rescore
  27. 2026-08-02 02:26 UTCEPSS rescore
  28. 2026-08-01 04:15 UTCEPSS rescore
  29. 2026-07-30 16:27 UTCEPSS rescore
  30. 2026-07-30 01:30 UTCEPSS rescore
  31. 2026-07-30 01:30 UTCEPSS rescore
  32. 2026-07-28 15:35 UTCEPSS rescore
  33. 2026-07-26 14:54 UTCEPSS rescore
  34. 2026-07-26 09:40 UTCEG score recompute
  35. 2026-07-26 09:40 UTCVendor advisory
  36. 2026-07-26 09:40 UTCGHSA enrichment
  37. 2026-07-25 14:17 UTCEPSS rescore
  38. 2026-07-25 14:17 UTCEPSS rescore
  39. 2026-07-24 14:17 UTCEPSS rescore
  40. 2026-07-23 14:18 UTCEPSS rescore
  41. 2026-07-23 02:56 UTCEG score recompute
  42. 2026-07-22 14:07 UTCEPSS rescore
  43. 2026-07-22 14:07 UTCEPSS rescore
  44. 2026-07-21 15:24 UTCEPSS rescore
  45. 2026-07-20 17:07 UTCEPSS rescore
  46. 2026-07-19 14:30 UTCEPSS rescore
  47. 2026-07-19 14:30 UTCEPSS rescore
  48. 2026-07-19 02:28 UTCEPSS rescore
  49. 2026-07-19 02:28 UTCEPSS rescore
  50. 2026-07-18 10:04 UTCEPSS rescore
  51. 2026-07-16 17:02 UTCEPSS rescore
  52. 2026-07-16 17:02 UTCEPSS rescore
  53. 2026-07-15 16:57 UTCEPSS rescore
  54. 2026-07-15 16:57 UTCEPSS rescore
  55. 2026-07-15 01:59 UTCEPSS rescore
  56. 2026-07-15 01:59 UTCEPSS rescore
  57. 2026-07-13 22:29 UTCEPSS rescore
  58. 2026-07-13 22:29 UTCEPSS rescore
  59. 2026-07-13 06:12 UTCEPSS rescore
  60. 2026-07-12 05:46 UTCEPSS rescore
  61. 2026-07-11 08:27 UTCEPSS rescore
  62. 2026-07-11 08:27 UTCEPSS rescore
  63. 2026-07-10 13:41 UTCOSV refresh
  64. 2026-07-09 19:09 UTCEPSS rescore
  65. 2026-07-09 19:09 UTCEPSS rescore
  66. 2026-07-08 15:15 UTCEPSS rescore
  67. 2026-07-07 13:45 UTCEPSS rescore
  68. 2026-07-06 16:27 UTCEPSS rescore
  69. 2026-07-06 16:27 UTCEPSS rescore
  70. 2026-07-06 02:23 UTCEPSS rescore
  71. 2026-07-06 02:23 UTCEPSS rescore
  72. 2026-07-05 02:30 UTCEPSS rescore
  73. 2026-07-04 06:30 UTCEPSS rescore
  74. 2026-07-02 17:01 UTCEPSS rescore
  75. 2026-07-01 15:06 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-46420?
CVE-2025-46420 is a medium vulnerability published on April 24, 2025. A flaw was found in libsoup. It is vulnerable to memory leaks in the soupheaderparsequalitylist() function when parsing a quality list that contains elements with all zeroes.
When was CVE-2025-46420 disclosed?
CVE-2025-46420 was first published in the National Vulnerability Database on April 24, 2025, with the most recent update on July 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-46420 actively exploited?
CVE-2025-46420 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 53.4% of all scored CVEs.
What is the CVSS score of CVE-2025-46420?
CVE-2025-46420 has a CVSS v4.0 base score of 6.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2025-46420?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-46420, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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