CVE-2016-9933: libgd
Vulnerability summary
CVE-2016-9933 is a high (CVSS 7.5) vulnerability in libgd. EPSS estimates a 6.87% chance of exploitation in the next 30 days, higher than 94% of scored vulnerabilities.
Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 7% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 6 · Related 4Timeline
- 04-01-2017PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
Stack consumption vulnerability in the gdImageFillToBorder function in gd.c in the GD Graphics Library (aka libgd) before 2.2.2, as used in PHP before 5.6.28 and 7.x before 7.0.13, allows remote attackers to cause a denial of service (segmentation violation) via a crafted imagefilltoborder call that triggers use of a negative color value.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
6.87%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
No change 0.00 pp
From 6.87% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Suse14 products
- gd&distro=SUSE Linux Enterprise Desktop 12 SP1< 2.1.0-20.1
- gd&distro=SUSE Linux Enterprise Desktop 12 SP2< 2.1.0-20.1
- gd&distro=SUSE Linux Enterprise Server 11 SP4< 2.0.36.RC1-52.29.1
- gd&distro=SUSE Linux Enterprise Server 12 SP1< 2.1.0-20.1
- gd&distro=SUSE Linux Enterprise Server 12 SP2< 2.1.0-20.1
Debian1 product
- libgd2< 2.2.2-29-g3c2b605-1 | < 2.1.0-5+deb8u8 | < 2.0.36~rc1~dfsg-6.1+deb7u7
Libgd1 product
- libgd2.2.1
Ubuntu1 product
- libgd2< 2.1.0-3ubuntu0.6 | < 2.1.1-4ubuntu0.16.04.6
4 vendors · 17 products
References
23 links- www.openwall.com/lists/oss-security/2016/12/12/2Mailing ListX Refsource MLISTThird Party AdvisoryREPORT
- github.com/php/php-src/commit/863d37ea66d5c960db08d6f4a2cbd2518f0f80d1X Refsource CONFIRMVendor Advisory
Show all 23 references
- github.com/libgd/libgd/commit/77f619d48259383628c3ec4654b1ad578e9eb40eX Refsource CONFIRMPatchVendor Advisory