CVE-2016-6912

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-17. 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: 4%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

Double free vulnerability in the gdImageWebPtr function in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to have unspecified impact via large width and height values.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
50(Track)
EG Risk 50/100SSVC: 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%
Exploitation4% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
4%
EPSS %ILE
91%
KEV
Not listed

Published

January 26, 2017

Last Modified

June 17, 2026

Advisory Details (4)

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

commit a49feeae76d4 (libgd/libgd)

Patch available: libgd/libgd gd-2.3.0 (contains commit a49feeae76d4)

https://github.com/libgd/libgd/commit/a49feeae76d41959d85ee733925a4cf40bac61b2
generic

libgd/CHANGELOG.md at gd-2.2.4 · libgd/libgd · GitHub

https://github.com/libgd/libgd/blob/gd-2.2.4/CHANGELOG.md
generic

CVE-2016-6912 - PSIRT.COM

http://www.securityfocus.com/bid/95843
generic Patch Available

[SECURITY] [DSA 3777-1] libgd2 security update

http://www.debian.org/security/2017/dsa-3777

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibgd2-xpm (2.0.36~rc1~dfsg-6ubuntu2.4) @ precise2026-05-20ubuntu

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:v3.3(1)
PackageVulnerable rangeFixed inDependents
gd2.0.35-r0 ... 2.1.1-r2 (17 versions)2.2.4-r0—
Alpine:v3.4(1)
PackageVulnerable rangeFixed inDependents
gd2.0.35-r0 ... 2.2.3-r1 (18 versions)2.2.4-r0—
Alpine:v3.5(1)
PackageVulnerable rangeFixed inDependents
gd2.0.35-r0 ... 2.2.3-r1 (18 versions)2.2.4-r0—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libgd2—2.2.4-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libgd2—2.2.4-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libgd2—2.2.4-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libgd2—2.2.4-1—
Debian:8(1)
PackageVulnerable rangeFixed inDependents
libgd22.1.0-5 ... 2.1.0-5+deb8u8 (9 versions)2.1.0-5+deb8u9—

Weakness Classification(1)

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

All Vendor Advisories

(1)

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 6× in last 7d / 20× 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 156 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2016-6912?
CVE-2016-6912 is a critical vulnerability published on January 26, 2017. Double free vulnerability in the gdImageWebPtr function in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to have unspecified impact via large width and height values.
When was CVE-2016-6912 disclosed?
CVE-2016-6912 was first published in the National Vulnerability Database on January 26, 2017, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-6912 actively exploited?
CVE-2016-6912 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4% probability of exploitation in the next 30 days, which ranks it in the top 9.0% of all scored CVEs.
What is the CVSS score of CVE-2016-6912?
CVE-2016-6912 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2016-6912?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-6912, 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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