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
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 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)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

March 19, 2026

Last Modified

July 15, 2026

Advisory Details (9)

Auto-updated Aug 22, 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_4.12026-04-21redhat
redhatperl-XML-Parser-0:2.46-9.el9_0.12026-04-21redhat
redhatperl-XML-Parser-0:2.47-6.el10_0.12026-04-20redhat
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-0:2.41-10.el7_9.12026-04-16redhat
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-0:2.44-12.el8_102026-04-13redhat
redhatperl-XML-Parser-0:2.47-6.1.el10_12026-04-13redhat
redhatperl-XML-Parser-0:2.46-9.1.el9_72026-04-13redhat

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.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libxml-parser-perl2.46-22.46-2+deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libxml-parser-perl2.46-42.46-4+deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libxml-parser-perl2.47-12.47-2~deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libxml-parser-perl2.47-1, 2.47-2~deb13u12.47-2—

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 0× in last 7d / 84× 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 196 total refreshes for this CVE.

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

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 July 15, 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 1% probability of exploitation in the next 30 days, which ranks it in the top 56.6% of all scored CVEs.
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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