CVE-2024-50180

Local privilege escalation via sisfb stack overwrite

Published Nov 8, 2024 · Updated May 11, 2026

Out-of-bounds write in the Linux sisfb framebuffer driver allows local users to overwrite stack memory through a crafted mode string. The sisfb_search_mode function parses xres and yres from the mode string, then uses sprintf to format them into a fixed 16-byte strbuf array without sufficient capacity. Local low-privileged access and the sisfb driver are required; successful exploitation can disclose or alter kernel data or crash the system.

CVSS severity7.8
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in the Linux sisfb framebuffer driver allows local users to overwrite stack memory through a crafted mode string. The sisfb_search_mode function parses xres and yres from the mode string, then uses sprintf to format them into a fixed 16-byte strbuf array without sufficient capacity. Local low-privileged access and the sisfb driver are required; successful exploitation can disclose or alter kernel data or crash the system.

The record

CVE
CVE-2024-50180
Published
Nov 8, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-787, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 8, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <11c0d49093b82f6c547fd419c41a982d26bdf5ef
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <252f147b1826cbb30ae0304cf86b66d3bb12b743
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <41cf6f26abe4f491b694c54bd1aa2530369b7510
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <433c84c8495008922534c5cafdae6ff970fb3241
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <57c4f4db0a194416da237fd09dad9527e00cb587
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <688872c4ea4a528cd6a057d545c83506b533ee1f
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <889304120ecb2ca30674d89cd4ef15990b6a571c
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9cf14f5a2746c19455ce9cb44341b5527b5e19c3
  9. Affected versionversion=2.6.12

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <11c0d49093b82f6c547fd419c41a982d26bdf5ef; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <252f147b1826cbb30ae0304cf86b66d3bb12b743; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <41cf6f26abe4f491b694c54bd1aa2530369b7510; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <433c84c8495008922534c5cafdae6ff970fb3241; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <57c4f4db0a194416da237fd09dad9527e00cb587; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <688872c4ea4a528cd6a057d545c83506b533ee1f; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <889304120ecb2ca30674d89cd4ef15990b6a571c; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9cf14f5a2746c19455ce9cb44341b5527b5e19c3; version=2.6.12

Published CVSS scores

7.8CISACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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