CVE-2026-102804: nothings stb Numeric Errors
Vulnerability summary
CVE-2026-102804 is a medium (CVSS 6.9) Numeric Errors vulnerability in nothings stb. EPSS estimates a 0.35% chance of exploitation in the next 30 days, higher than 26.7% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 30-09-2026PublishedVulnerability first disclosed.
- 02-10-2026Last modifiedVulnerability information updated.
Description
A vulnerability was detected in Nothings stb up to 2c980bb59875b0d32144a71867fbdebb2f77cd20. The impacted element is the function hexwave_init in the library stb_hexwave.h. Performing a manipulation of the argument width/oversample results in integer overflow. Remote exploitation of the attack is possible. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
CVSS metrics
10 scores · 4 sources · 4 versions- OSV · UbuntuEcosystem advisory · calculated6.9MediumCVSS: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:P
- OSV · DebianEcosystem advisory · calculated6.9MediumCVSS: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:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVDNIST5.5MediumCVSS: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:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XDiffers
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
- NVDNIST6.4MediumAV:N/AC:L/Au:N/C:N/I:P/A:P
EPSS trend
Probability
0.35%
Chance of exploitation in the next 30 days
Percentile
27%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundFiles
Maturity: poc
Weaknesses
CWE · root cause- CWE-189Numeric ErrorsWeaknesses in this category are related to improper calculation or conversion of numbers.
- CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
Affected systems
Debian1 product
- libstbAll versions (No fix recorded)
Nothings1 product
- stb2c980bb59875b0d32144a71867fbdebb2f77cd20
Ubuntu1 product
- libstbAll versions (No fix recorded)
3 vendors · 3 products
