VulnerabilityPublished 28 Oct 2026

CVE-2026-99118: Linux kernel · drm/i915/dmc: Harden DMC firmware payload parsing

Source GCVE Database

Authoritative record:CVE-2026-99118

Not known to be exploited · fixed in dfcfe2874e7c16e8460dc86ac1eeb54ea0e7f8aa : update Linux kernel when convenient.

Data as of 28 Oct 2026, 14:14 UTC

Severity

Medium

Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD

Patch: Available – fixed in dfcfe2874e7c16e8460dc86ac1eeb54ea0e7f8aa, 8bb1858db453cd4250e3b633f5d2d09206024ca6, 05f7a2f712f8b287a98ee61a7c2c6b72dad2fc6d

Exploitation evidence

Disclosed: evidence found.
CVE published 28 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-v3g3-p6wj-rwgr

What to do

Upgrade Linux kernel to dfcfe2874e7c16e8460dc86ac1eeb54ea0e7f8aa, 8bb1858db453cd4250e3b633f5d2d09206024ca6 or 05f7a2f712f8b287a98ee61a7c2c6b72dad2fc6d.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ eb805623d8b161342ed9c9caf366f0a295041a6d, < dfcfe2874e7c16e8460dc86ac1eeb54ea0e7f8aa	Fixed in dfcfe2874e7c16e8460dc86ac1eeb54ea0e7f8aa
LinuxLinux	Affected ≥ eb805623d8b161342ed9c9caf366f0a295041a6d, < 8bb1858db453cd4250e3b633f5d2d09206024ca6	Fixed in 8bb1858db453cd4250e3b633f5d2d09206024ca6
LinuxLinux	Affected ≥ eb805623d8b161342ed9c9caf366f0a295041a6d, < 05f7a2f712f8b287a98ee61a7c2c6b72dad2fc6d	Fixed in 05f7a2f712f8b287a98ee61a7c2c6b72dad2fc6d
LinuxLinux	Affected =4.2	Fixed in–

AI-suggested

A fix for this vulnerability has been applied in the Linux kernel source. Users and administrators should update to a kernel version that includes this patch to ensure the vulnerability is remediated. No additional mitigation steps are indicated beyond applying the official fix.

Description

A vulnerability in the Linux kernel's drm/i915 driver related to DMC firmware payload parsing has been resolved. The fix involves validating the conversion of the DMC firmware size to prevent overflow, rejecting zero-length payloads and zero MMIO counts, and ensuring the firmware size is set only after successful payload allocation. This hardening prevents malformed firmware from being processed.

References

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