CVE-2026-102804: Libstb · A vulnerability was detected in Nothings stb up to 2c980bb59875b0d32144a71867fbdebb2f77cd20
Affects libstbSource GCVE Database
Public exploit available · CVSS 6.9 Medium.
Data as of 14 Nov 2026, 20:43 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 28% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:PExploitation evidence
t = 0 is the CVE’s publication on cve.org
Disclosed: evidence found.
CVE published 30 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CISA SSVC: proof of concept public
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
Timeline
CVE ID reserved
by VulDB
, 7 hours before disclosure
CVE published
on cve.org
, t = 0
CISA SSVC assessment
proof of concept public
, 2 days after disclosure
In Threat Radar
record ingested
, 26 days after disclosure
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA SSVC, the Metasploit, Exploit-DB and nuclei-templates index as of 14 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10libstbpkg:deb/ubuntu/libstb?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlibstbpkg:deb/ubuntu/libstb?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSlibstbpkg:deb/ubuntu/libstb?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSlibstbpkg:deb/ubuntu/libstb?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 20.04 LTSlibstbpkg:deb/ubuntu/libstb?arch=source&distro=focalOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should monitor the vendor's advisory channels for updates. Until a fix is available, consider restricting exposure of affected components to untrusted networks to reduce exploitation risk.
Description
CVE-2026-102804 is an integer overflow vulnerability in the hexwave_init function of the stb_hexwave.h library within Nothings stb. The flaw occurs due to improper handling of the width or oversample arguments, which can lead to integer overflow. Remote exploitation is possible, and public exploit code is available. The vulnerability has a medium severity with a CVSS score of 6.5. The project has been notified but has not yet issued a patch or response.
References
- nvd.nist.gov/vuln/detail/CVE-2026-102804 (opens in a new tab)
- github.com/nothings/stb/issues/1961 (opens in a new tab)
- github.com/nothings/stb (opens in a new tab)
- github.com/user-attachments/files/31351618/poc_hexwave.c (opens in a new tab)
- vuldb.com/cve/CVE-2026-102804 (opens in a new tab)
- vuldb.com/submit/944861 (opens in a new tab)
- vuldb.com/vuln/411496 (opens in a new tab)
- vuldb.com/vuln/411496/cti (opens in a new tab)
- github.com/nothings/stb/ (opens in a new tab)
- ubuntu.com/security/CVE-2026-102804 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-102804 (opens in a new tab)