CVE-2026-5314
Nothings stb TTF File stb_truetype.h stbtt_InitFont_internal out-of-bounds
A vulnerability was found in Nothings stb up to 1.26. Impacted is the function stbtt_InitFont_internal in the library stb_truetype.h of the component TTF File Handler. Performing a manipulation results in out-of-bounds read. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Nothings stb TTF File stb_truetype.h stbtt_InitFont_internal out-of-bounds
A vulnerability was found in Nothings stb up to 1.26. Impacted is the function stbtt_InitFont_internal in the library stb_truetype.h of the component TTF File Handler. Performing a manipulation results in out-of-bounds read. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
- Record
CVE-2026-5314- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P - CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R - CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R - CVSS 2.0
- 5.0
AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR - Weakness
- CWE-125, CWE-119
- Updated
- 2026-11-02
EUVDEUVD-2026-18092
A vulnerability was found in Nothings stb up to 1.26. Impacted is the function stbtt_InitFont_internal in the library stb_truetype.h of the component TTF File Handler. Performing a manipulation results in out-of-bounds read. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
- Record
EUVD-2026-18092- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-x46x-p265-r7jv
A vulnerability was found in Nothings stb up to 1.26. Impacted is the function...
A vulnerability was found in Nothings stb up to 1.26. Impacted is the function stbtt_InitFont_internal in the library stb_truetype.h of the component TTF File Handler. Performing a manipulation results in out-of-bounds read. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
- Record
GHSA-x46x-p265-r7jv- CVSS 4.0
- 2.1 Low
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/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 - CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L - Weakness
- CWE-119
- Updated
- 2026-11-02
NVD
A vulnerability was found in Nothings stb up to 1.26. Impacted is the function stbtt_InitFont_internal in the library stb_truetype.h of the component TTF File Handler. Performing a manipulation results in out-of-bounds read. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
- Record
CVE-2026-5314- CVSS 4.0
- 2.1 Low
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/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 - CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-119, CWE-125
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-5314
A vulnerability was found in Nothings stb up to 1.26. Impacted is the function stbtt_InitFont_internal in the library stb_truetype.h of the component TTF File Handler. Performing a manipulation results in out-of-bounds read. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
- Record
DEBIAN-CVE-2026-5314- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-5314
A vulnerability was found in Nothings stb up to 1.26. Impacted is the function stbtt_InitFont_internal in the library stb_truetype.h of the component TTF File Handler. Performing a manipulation results in out-of-bounds read. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
- Record
UBUNTU-CVE-2026-5314- CVSS 4.0
- 2.1 Low
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
libstbDebian:12 |
All versions, plus listed versions 0.0~git20220908.8b5f1f3+ds-10.0~git20230129.5736b15+ds-10.0~git20230129.5736b15+ds-1.10.0~git20230129.5736b15+ds-1.1~exp10.0~git20230129.5736b15+ds-1.20.0~git20240715.f7f20f39fe4f+ds-10.0~git20241109.5c20573+ds-10.0~git20250907.fede005+ds-1 |
None known |
libstbDebian:13 |
All versions, plus listed versions 0.0~git20241109.5c20573+ds-10.0~git20250907.fede005+ds-1 |
None known |
libstbDebian:14 |
All versions, plus listed versions 0.0~git20241109.5c20573+ds-10.0~git20250907.fede005+ds-1 |
None known |
libstbUbuntu:20.04:LTS |
All versions, plus listed versions 0.0~git20190817.1.052dce1-1 |
None known |
libstbUbuntu:22.04:LTS |
All versions, plus listed versions 0.0~git20200713.b42009b+ds-10.0~git20210910.af1a5bc+ds-1 |
None known |
libstbUbuntu:24.04:LTS |
All versions, plus listed versions 0.0~git20230129.5736b15+ds-10.0~git20230129.5736b15+ds-1.10.0~git20230129.5736b15+ds-1.2 |
None known |
libstbUbuntu:25.10 |
All versions, plus listed versions 0.0~git20240715.f7f20f39fe4f+ds-10.0~git20241109.5c20573+ds-1 |
None known |
libstbUbuntu:26.10 |
All versions, plus listed versions 0.0~git20250907.fede005+ds-1 |
None known |
libstbUbuntu:26.04:LTS |
All versions, plus listed versions 0.0~git20241109.5c20573+ds-10.0~git20250907.fede005+ds-1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-5314 is a medium vulnerability (CVSS 5.3) in Nothings Stb, published April 1, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.69%, the 52nd percentile. No source names a fixed version.
References
vuldb.com/vuln/354646
gist.github.com/d0razi/cb31a92f3205a4373f19b7da25946848
nvd.nist.gov/vuln/detail/CVE-2026-5314
github.com/advisories/GHSA-x46x-p265-r7jv
security-tracker.debian.org/tracker/CVE-2026-5314
ubuntu.com/security/CVE-2026-5314
cve.org/CVERecord?id=CVE-2026-5314