Nothings stb TTF File stb_truetype.h stbtt__buf_get8 out-of-bounds

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2026-5315
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-02 00:16:25 UTC
Updated2026-04-02 00:16:25 UTC
DescriptionA vulnerability was determined in Nothings stb up to 1.26. The affected element is the function stbtt__buf_get8 in the library stb_truetype.h of the component TTF File Handler. Executing a manipulation can lead to out-of-bounds read. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Risk And Classification

Primary CVSS: v4.0 5.3 MEDIUM from [email protected]

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

Problem Types: CWE-119 | CWE-125 | CWE-125 Out-of-Bounds Read | CWE-119 Memory Corruption

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary5.3MEDIUMCVSS: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/C...
4.0CNADECLARED5.3MEDIUMCVSS: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
3.1[email protected]Primary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
3.0CNADECLARED4.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
2.0[email protected]Secondary5AV:N/AC:L/Au:N/C:N/I:N/A:P
2.0CNADECLARED5AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Passive
Confidentiality
None
Integrity
None
Availability
Low
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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 v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Nothings Stb affected 1.0 Not specified
CNA Nothings Stb affected 1.1 Not specified
CNA Nothings Stb affected 1.2 Not specified
CNA Nothings Stb affected 1.3 Not specified
CNA Nothings Stb affected 1.4 Not specified
CNA Nothings Stb affected 1.5 Not specified
CNA Nothings Stb affected 1.6 Not specified
CNA Nothings Stb affected 1.7 Not specified
CNA Nothings Stb affected 1.8 Not specified
CNA Nothings Stb affected 1.9 Not specified
CNA Nothings Stb affected 1.10 Not specified
CNA Nothings Stb affected 1.11 Not specified
CNA Nothings Stb affected 1.12 Not specified
CNA Nothings Stb affected 1.13 Not specified
CNA Nothings Stb affected 1.14 Not specified
CNA Nothings Stb affected 1.15 Not specified
CNA Nothings Stb affected 1.16 Not specified
CNA Nothings Stb affected 1.17 Not specified
CNA Nothings Stb affected 1.18 Not specified
CNA Nothings Stb affected 1.19 Not specified
CNA Nothings Stb affected 1.20 Not specified
CNA Nothings Stb affected 1.21 Not specified
CNA Nothings Stb affected 1.22 Not specified
CNA Nothings Stb affected 1.23 Not specified
CNA Nothings Stb affected 1.24 Not specified
CNA Nothings Stb affected 1.25 Not specified
CNA Nothings Stb affected 1.26 Not specified

References

ReferenceSourceLinkTags
vuldb.com/submit/780559 [email protected] vuldb.com
vuldb.com/vuln/354647/cti [email protected] vuldb.com
gist.github.com/d0razi/c11dd07c75f3b795e4f8bbfd6e2f0d29 [email protected] gist.github.com
vuldb.com/vuln/354647 [email protected] vuldb.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: d0razi (VulDB User) (en)

CNA: VulDB (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-04-01T00:00:00.000ZAdvisory disclosed
CNA2026-04-01T02:00:00.000ZVulDB entry created
CNA2026-04-01T14:45:23.000ZVulDB entry last update
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