CVE-2025-49796

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2025-06-16. a secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 9.1Exploit: None knownExposed: 0

A fix is available — apply it.

A vulnerability was found in libxml2. Processing certain sch:name elements from the input XML file can trigger a memory corruption issue. This flaw allows an attacker to craft a malicious XML input file that can lead libxml to crash, resulting in a denial of service or other possible undefined behavior due to sensitive data being corrupted in memory.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
57(Track)
EG Risk 57/100SSVC: 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
Severity91% × 45%
Exploitation2% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
74%
KEV
Not listed

Published

June 16, 2025

Last Modified

September 18, 2026

Advisory Details (10)

Auto-updated Sep 15, 2026
Patch available. Sources: redhat.
redhat Patch Available

Affected: Red Hat Enterprise Linux 7 Extended Lifecycle Support.

https://access.redhat.com/errata/RHSA-2025:12240
redhat Patch Available

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-2025:12239
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.2 Advanced Update Support.

https://access.redhat.com/errata/RHSA-2025:12237
redhat Patch Available

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

https://access.redhat.com/errata/RHSA-2025:12199
redhat Patch Available

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

https://access.redhat.com/errata/RHSA-2025:12099
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-2025:12098
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.4 Extended Update Support.

https://access.redhat.com/errata/RHSA-2025:11580
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2025:10699
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2025:10698
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

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

Vendor Advisories for CVE-2025-49796(20)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(29)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntupython3-libxml2 (2.9.10+dfsg-5ubuntu0.20.04.10+esm1) @ focal2026-09-18ubuntu
redhatrhcos-416.94.202609011112-02026-09-10redhat
redhatlibxml2-main-2.15.2-0.3.hum12026-04-10redhat
redhatopenshift-serverless-1/logic-swf-devmode-rhel8:1.36.0-72026-01-22redhat
redhatcompliance/openshift-file-integrity-rhel8-operator:v1.32025-11-21redhat
redhatrhcos-412.86.202510291903-02025-11-13redhat
redhatrhcos-414.92.202510211419-02025-10-30redhat
redhatrhcos-418.94.202510230424-02025-10-29redhat
redhatlibxml22025-10-27redhat
redhatrhcos-413.92.202510150118-02025-10-23redhat
redhatrhcos-417.94.202510112152-02025-10-22redhat
redhatrhcos-4.19.9.6.202510140714-02025-10-22redhat
redhatrhcos-4.20.9.6.202509251656-02025-10-21redhat
redhatcert-manager/jetstack-cert-manager-rhel9:v1.16.5-17605157572025-10-16redhat
redhatweb-terminal/web-terminal-tooling-rhel9:1.12-42025-09-15redhat
redhatweb-terminal/web-terminal-tooling-rhel9:1.11-82025-09-15redhat
redhatinsights-proxy/insights-proxy-container-rhel9:1.5.5-17545043432025-08-07redhat
redhatdiscovery/discovery-server-rhel9:2.0.1-17544787272025-08-06redhat
redhatlibxml2-0:2.9.7-9.el8_2.32025-07-30redhat
redhatlibxml2-0:2.9.7-16.el8_8.92025-07-30redhat
redhatlibxml2-0:2.9.7-9.el8_4.62025-07-30redhat
redhatlibxml2-0:2.9.1-6.el7_9.102025-07-30redhat
redhatlibxml2-0:2.9.13-3.el9_2.72025-07-29redhat
redhatlibxml2-0:2.9.7-13.el8_6.102025-07-29redhat
redhatlibxml2-0:2.9.13-1.el9_0.52025-07-29redhat
redhatlibxml2-0:2.9.13-10.el9_42025-07-23redhat
redhatlibxml2-0:2.9.7-21.el8_10.12025-07-09redhat
redhatlibxml2-0:2.9.13-10.el9_62025-07-09redhat
redhatlibxml2-0:2.12.5-7.el10_02025-07-08redhat

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 8 ecosystems)
Alpine:v3.21(1)
PackageVulnerable rangeFixed inDependents
libxml2—2.13.9-r0—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
libxml2—2.13.9-r0—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
libxml2—2.13.9-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
libxml2—2.13.9-r0—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libxml22.9.10+dfsg-6.7 ... 2.9.10+dfsg-6.7+deb11u7 (8 versions)2.9.10+dfsg-6.7+deb11u8—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libxml22.9.14+dfsg-1.2, 2.9.14+dfsg-1.3~deb12u1, 2.9.14+dfsg-1.3~deb12u22.9.14+dfsg-1.3~deb12u3—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libxml2—2.12.7+dfsg+really2.9.14-2—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libxml2—2.12.7+dfsg+really2.9.14-2—

Weakness Classification(1)

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

Additional Vendor Advisories

(9)

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 12× in last 7d / 80× 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 273 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2025-49796?
CVE-2025-49796 is a critical vulnerability published on June 16, 2025. A vulnerability was found in libxml2. Processing certain sch:name elements from the input XML file can trigger a memory corruption issue. This flaw allows an attacker to craft a malicious XML input file that can lead libxml to crash, resulting in a denial of service or other possible undefined…
When was CVE-2025-49796 disclosed?
CVE-2025-49796 was first published in the National Vulnerability Database on June 16, 2025, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-49796 actively exploited?
CVE-2025-49796 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 25.9% of all scored CVEs.
What is the CVSS score of CVE-2025-49796?
CVE-2025-49796 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2025-49796?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-49796, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-49796

Explore →

Is Your Infrastructure Affected by CVE-2025-49796?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs