CVE-2006-10003

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-03-19. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack.

In the case (stackptr == stacksize - 1), the stack will NOT be expanded. Then the new value will be written at location (++stackptr), which equals stacksize and therefore falls just outside the allocated buffer.

The bug can be observed when parsing an XML file with very deep element nesting

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
42.0%
KEV
Not listed

Published

March 19, 2026

Last Modified

June 30, 2026

Advisory Details (9)

Auto-updated Jun 30, 2026
Patch available. Sources: redhat.
redhat Patch Available

Affected: Red Hat Enterprise Linux 7 Extended Lifecycle Support.

https://access.redhat.com/errata/RHSA-2026:8578
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-2026:8577
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:7681
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:7680
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:7679
generic Patch Available

[SECURITY] [DLA 4522-1] libxml-parser-perl security update

https://lists.debian.org/debian-lts-announce/2026/04/msg00002.html
generic

oss-security - CVE-2006-10003: XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in st_serial_stack

http://www.openwall.com/lists/oss-security/2026/03/19/2
generic

Buffer overflow in Expat.xs (patch) [rt.cpan.org #19860] · Issue #39 · cpan-authors/XML-Parser · GitHub

https://github.com/cpan-authors/XML-Parser/issues/39
generic
https://github.com/cpan-authors/XML-Parser/commit/3eb9cc95420fa0c3f76947c4708962546bf27cfd.patch

Vendor Advisories for CVE-2006-10003(2)

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

Patch Availability(14)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibxml-parser-perl (2.47-1ubuntu0.25.10.1) @ questing2026-06-12ubuntu
redhatperl-XML-Parser-0:2.46-9.el9_6.12026-04-22redhat
redhatperl-XML-Parser-0:2.46-9.el9_2.12026-04-21redhat
redhatperl-XML-Parser-0:2.46-9.el9_0.12026-04-21redhat
redhatperl-XML-Parser-0:2.46-9.el9_4.12026-04-21redhat
redhatperl-XML-Parser-0:2.47-6.el10_0.12026-04-20redhat
redhatperl-XML-Parser-0:2.44-11.el8_8.12026-04-16redhat
redhatperl-XML-Parser-0:2.44-11.el8_6.12026-04-16redhat
redhatperl-XML-Parser-0:2.41-10.el7_9.12026-04-16redhat
redhatperl-XML-Parser-0:2.44-11.el8_2.12026-04-16redhat
redhatperl-XML-Parser-0:2.44-11.el8_4.12026-04-16redhat
redhatperl-XML-Parser-0:2.47-6.1.el10_12026-04-13redhat
redhatperl-XML-Parser-0:2.46-9.1.el9_72026-04-13redhat
redhatperl-XML-Parser-0:2.44-12.el8_102026-04-13redhat

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.

Weakness Classification(2)

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

Additional Vendor Advisories

(14)

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 5× in last 7d / 36× 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 112 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2006-10003?
CVE-2006-10003 is a critical vulnerability published on March 19, 2026. XML::Parser versions through 2.47 for Perl has an off-by-one heap buffer overflow in stserialstack. In the case (stackptr == stacksize - 1), the stack will NOT be expanded. Then the new value will be written at location (++stackptr), which equals stacksize and therefore falls just outside the…
When was CVE-2006-10003 disclosed?
CVE-2006-10003 was first published in the National Vulnerability Database on March 19, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2006-10003 actively exploited?
CVE-2006-10003 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 42.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2006-10003?
CVE-2006-10003 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2006-10003?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2006-10003, 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.

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