CVE-2016-7126

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. 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: 9%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

The imagetruecolortopalette function in ext/gd/gd.c in PHP before 5.6.25 and 7.x before 7.0.10 does not properly validate the number of colors, which allows remote attackers to cause a denial of service (select_colors allocation error and out-of-bounds write) or possibly have unspecified other impact via a large value in the third argument.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
52(Track)
EG Risk 52/100SSVC: 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%
Exploitation9% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
9%
EPSS %ILE
95%
KEV
Not listed

Published

September 12, 2016

Last Modified

June 17, 2026

Advisory Details (10)

Auto-updated Aug 18, 2026
Patch available. Sources: github_commit.
generic

PHP: Multiple vulnerabilities (GLSA 201611-22) — Gentoo security

https://security.gentoo.org/glsa/201611-22
github_commit

commit b6f13a5ef9d6 (php/php-src)

Fix landed in php/php-src commit b6f13a5ef9d6 — awaiting tagged release

https://github.com/php/php-src/commit/b6f13a5ef9d6280cf984826a5de012a32c396cd4?w=1
github_commit Patch Available

commit 28022c9b1fd9 (php/php-src)

Patch available: php/php-src php-8.4.15 (contains commit 28022c9b1fd9)

https://github.com/php/php-src/commit/28022c9b1fd937436ab67bb3d61f652c108baf96
generic

PHP :: Sec Bug #72697 :: select_colors write out-of-bounds

https://bugs.php.net/bug.php?id=72697
generic
http://www.securitytracker.com/id/1036680
generic

CVE-2016-7126 — PSIRT.COM

http://www.securityfocus.com/bid/92755
generic

PHP: PHP 7 ChangeLog

http://www.php.net/ChangeLog-7.php
generic

PHP: PHP 5 ChangeLog

http://www.php.net/ChangeLog-5.php
generic
http://rhn.redhat.com/errata/RHSA-2016-2750.html
generic

oss-security - Re: CVE assignment for PHP 5.6.25 and 7.0.10 - and libcurl

http://openwall.com/lists/oss-security/2016/09/02/9

Vendor Advisories for CVE-2016-7126(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrh-php56-php-pear-1:1.9.5-4.el72016-11-15redhat

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:8(1)
PackageVulnerable rangeFixed inDependents
php55.6.11+dfsg-1 ... 5.6.9+dfsg-1 (34 versions)5.6.26+dfsg-0+deb8u1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 25× 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 136 total refreshes for this CVE.

  1. 2026-08-19 16:59 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2016-7126?
CVE-2016-7126 is a critical vulnerability published on September 12, 2016. The imagetruecolortopalette function in ext/gd/gd.c in PHP before 5.6.25 and 7.x before 7.0.10 does not properly validate the number of colors, which allows remote attackers to cause a denial of service (select_colors allocation error and out-of-bounds write) or possibly have unspecified other…
When was CVE-2016-7126 disclosed?
CVE-2016-7126 was first published in the National Vulnerability Database on September 12, 2016, 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-2016-7126 actively exploited?
CVE-2016-7126 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9% probability of exploitation in the next 30 days, which ranks it in the top 5.2% of all scored CVEs.
What is the CVSS score of CVE-2016-7126?
CVE-2016-7126 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2016-7126?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-7126, 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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