CVE-2011-3026

MEDIUMCVSS v2 · 6.86.8—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 6.8 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:M/Au:N/C:P/I:P/A:P. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 73.3% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Sources: epss, nvd_v2
Elevated
6.8EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 73%
CISA-KEV: Not listedEPSS PROB: 73%CVSS v2: 6.8Exploit: Elevated riskExposed: 0

A fix is available — apply it.

Integer overflow in libpng, as used in Google Chrome before 17.0.963.56, allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors that trigger an integer truncation.

CVSS v2.0 (legacy)
6.8MEDIUMNVD never assigned a CVSS v3 rating to this CVE
EG Score
6.8(low)
EG Risk
64(Track)
EG Risk 64/100SSVC: 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
Severity68% × 45%
Exploitation73% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
73%
EPSS %ILE
99%
KEV
Not listed

Published

February 16, 2012

Last Modified

April 29, 2026

References (26)

Patch Availability(9)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuxulrunner-1.9.2 (1.9.2.27+build1+nobinonly-0ubuntu0.10.04.1) @ lucid2026-05-29ubuntu
ubuntulibpng12-0 (1.2.42-1ubuntu2.3) @ lucid2026-05-29ubuntu
ubuntuthunderbird (3.1.19+build1+nobinonly-0ubuntu0.11.04.1) @ natty2026-05-29ubuntu
ubuntufirefox (10.0.2+build1-0ubuntu0.11.10.1) @ oneiric2026-05-29ubuntu
redhatlibpng-2:1.2.46-2.el6_22012-02-20redhat
redhatxulrunner-0:1.9.2.26-2.el6_22012-02-16redhat
redhatfirefox-0:3.6.26-3.el42012-02-16redhat
redhatthunderbird-0:3.1.18-2.el6_22012-02-16redhat
redhatseamonkey-0:1.0.9-79.el42012-02-16redhat

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

(1 across 1 ecosystem)
Debian:6.0(1)
PackageVulnerable rangeFixed inDependents
libpng1.2.44-1, 1.2.44-1+squeeze11.2.44-1+squeeze2—

Weakness Classification(1)

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

All Vendor Advisories

(9)

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 3× in last 7d / 7× 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.

  1. 2026-09-16 13:58 UTCEPSS rescore
  2. 2026-09-15 03:04 UTCEPSS rescore
  3. 2026-09-12 14:54 UTCEPSS rescore
  4. 2026-09-06 13:41 UTCEPSS rescore
  5. 2026-09-05 15:22 UTCEPSS rescore
  6. 2026-09-04 13:55 UTCEPSS rescore
  7. 2026-08-25 13:43 UTCEPSS rescore
  8. 2026-08-19 16:58 UTCEPSS rescore
  9. 2026-08-15 01:25 UTCEPSS rescore
  10. 2026-08-08 16:31 UTCEPSS rescore
  11. 2026-08-06 13:41 UTCEPSS rescore
  12. 2026-07-26 13:43 UTCEG score recompute▲ 6.80
  13. 2026-07-23 01:05 UTCEG score recompute▼ 7.10
  14. 2026-07-23 00:09 UTCEG score recompute▲ 7.10
  15. 2026-07-22 21:47 UTCEG score recompute
  16. 2026-07-22 14:03 UTCEPSS rescore
  17. 2026-07-21 15:21 UTCEPSS rescore
  18. 2026-07-20 17:03 UTCEPSS rescore
  19. 2026-07-20 17:03 UTCEPSS rescore
  20. 2026-07-15 16:54 UTCEPSS rescore
  21. 2026-07-15 16:54 UTCEPSS rescore
  22. 2026-07-15 01:55 UTCEPSS rescore
  23. 2026-07-13 22:25 UTCEPSS rescore
  24. 2026-07-13 06:08 UTCEPSS rescore
  25. 2026-07-11 08:22 UTCEPSS rescore
Show 68 more
  1. 2026-07-11 08:22 UTCEPSS rescore
  2. 2026-07-06 16:23 UTCEPSS rescore
  3. 2026-07-05 02:26 UTCEPSS rescore
  4. 2026-07-02 14:01 UTCEPSS rescore
  5. 2026-07-01 15:02 UTCEPSS rescore
  6. 2026-07-01 15:02 UTCEPSS rescore
  7. 2026-06-30 23:19 UTCEPSS rescore
  8. 2026-06-30 23:19 UTCEPSS rescore
  9. 2026-06-28 14:03 UTCEPSS rescore
  10. 2026-06-27 03:05 UTCEPSS rescore
  11. 2026-06-27 03:05 UTCEPSS rescore
  12. 2026-06-25 13:46 UTCEPSS rescore
  13. 2026-06-24 14:02 UTCEPSS rescore
  14. 2026-06-24 14:02 UTCEPSS rescore
  15. 2026-06-23 21:30 UTCEPSS rescore
  16. 2026-06-23 21:30 UTCEPSS rescore
  17. 2026-06-18 17:49 UTCEPSS rescore
  18. 2026-06-18 17:49 UTCEPSS rescore
  19. 2026-06-17 17:49 UTCEPSS rescore
  20. 2026-06-17 17:49 UTCEPSS rescore
  21. 2026-06-17 17:49 UTCEPSS rescore
  22. 2026-06-15 17:44 UTCEPSS rescore
  23. 2026-06-13 22:57 UTCEPSS rescore
  24. 2026-06-13 22:57 UTCEPSS rescore
  25. 2026-06-12 23:08 UTCEPSS rescore
  26. 2026-06-11 13:56 UTCEPSS rescore
  27. 2026-06-10 22:14 UTCEPSS rescore
  28. 2026-06-10 13:17 UTCEPSS rescore
  29. 2026-06-08 14:14 UTCEPSS rescore
  30. 2026-06-08 14:14 UTCEPSS rescore
  31. 2026-06-07 15:22 UTCEPSS rescore
  32. 2026-06-07 15:22 UTCEPSS rescore
  33. 2026-06-06 13:45 UTCEPSS rescore
  34. 2026-06-06 13:44 UTCEPSS rescore
  35. 2026-06-05 22:44 UTCEPSS rescore
  36. 2026-06-05 06:08 UTCEPSS rescore
  37. 2026-06-05 06:07 UTCEPSS rescore
  38. 2026-06-04 13:09 UTCEPSS rescore
  39. 2026-06-04 13:09 UTCEPSS rescore
  40. 2026-06-02 20:10 UTCEPSS rescore
  41. 2026-06-02 20:10 UTCEPSS rescore
  42. 2026-05-31 22:28 UTCEPSS rescore
  43. 2026-05-31 22:28 UTCEPSS rescore
  44. 2026-05-31 00:14 UTCEPSS rescore
  45. 2026-05-31 00:14 UTCEPSS rescore
  46. 2026-05-29 13:41 UTCEPSS rescore
  47. 2026-05-29 13:40 UTCEPSS rescore
  48. 2026-05-29 05:24 UTCEG score recompute
  49. 2026-05-29 05:24 UTCVendor advisory
  50. 2026-05-29 05:24 UTCGHSA enrichment
  51. 2026-05-28 13:42 UTCEPSS rescore
  52. 2026-05-28 13:42 UTCEPSS rescore
  53. 2026-05-28 13:42 UTCEPSS rescore
  54. 2026-05-27 13:38 UTCEPSS rescore
  55. 2026-05-27 13:38 UTCEPSS rescore
  56. 2026-05-26 07:16 UTCEPSS rescore
  57. 2026-05-26 07:16 UTCEPSS rescore
  58. 2026-05-22 21:15 UTCEPSS rescore
  59. 2026-05-22 21:15 UTCEPSS rescore
  60. 2026-05-22 21:15 UTCEPSS rescore
  61. 2026-05-20 22:37 UTCEPSS rescore
  62. 2026-05-20 22:37 UTCEPSS rescore
  63. 2026-05-20 22:37 UTCEPSS rescore
  64. 2026-05-20 11:21 UTCEPSS rescore
  65. 2026-05-20 11:21 UTCEPSS rescore
  66. 2026-05-20 11:21 UTCEPSS rescore
  67. 2026-05-18 21:29 UTCEPSS rescore
  68. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCargp/cve-2011-3026-firefox
    First seen Aug 2, 2012

    Example of exploiting CVE-2011-3026 on Firefox (Linux/x86)

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(4)

What is CVE-2011-3026?
CVE-2011-3026 is a medium vulnerability published on February 16, 2012. Integer overflow in libpng, as used in Google Chrome before 17.0.963.56, allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors that trigger an integer truncation.
When was CVE-2011-3026 disclosed?
CVE-2011-3026 was first published in the National Vulnerability Database on February 16, 2012, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2011-3026 actively exploited?
CVE-2011-3026 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 73% probability of exploitation in the next 30 days, which ranks it in the top 0.6% of all scored CVEs.
How do I remediate CVE-2011-3026?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-3026, 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-2011-3026

Explore →

Is Your Infrastructure Affected by CVE-2011-3026?

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

Start Free Scan →Browse All CVEs