CVE-2018-11489
CVSS v3
8.8
HIGH
EPSS Score
2.6 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
The DGifDecompressLine function in dgif_lib.c in GIFLIB (possibly version 3.0.x), as later shipped in cgif.c in sam2p 0.49.4, has a heap-based buffer overflow because a certain CrntCode array index is not checked. This will lead to a denial of service or possibly unspecified other impact.
Technical details
- Published
- 2018-05-26
Frequently asked questions
What is CVE-2018-11489?
The DGifDecompressLine function in dgif_lib.c in GIFLIB (possibly version 3.0.x), as later shipped in cgif.c in sam2p 0.49.4, has a heap-based buffer overflow because a certain CrntCode array index is not checked. This will lead to a denial of service or possibly unspecified other impact.
Is CVE-2018-11489 actively exploited?
Active exploitation of CVE-2018-11489 has not been confirmed. Its EPSS score was 2.6% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-11489?
CVE-2018-11489 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2018-11489 affecting your environment?
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