Nothings stb TTF File stb_truetype.h stbtt__buf_get8 out-of-bounds
Summary
| CVE | CVE-2026-5315 |
|---|---|
| State | PUBLISHED |
| Assigner | VulDB |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-04-02 00:16:25 UTC |
| Updated | 2026-04-30 20:20:16 UTC |
| Description | A 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 2.1 LOW 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
EPSS: 0.001370000 probability, percentile 0.331240000 (date 2026-05-05)
Problem Types: CWE-119 | CWE-125 | CWE-125 Out-of-Bounds Read | CWE-119 Memory Corruption
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 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/C... |
| 4.0 | CNA | DECLARED | 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 |
| 3.1 | [email protected] | Primary | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| 3.1 | [email protected] | Secondary | 4.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L |
| 3.1 | CNA | DECLARED | 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 |
| 3.0 | CNA | DECLARED | 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 |
| 2.0 | [email protected] | Secondary | 5 | AV:N/AC:L/Au:N/C:N/I:N/A:P | |
| 2.0 | CNA | DECLARED | 5 | AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:ND/RC:UR |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowAttack Requirements
NonePrivileges Required
NoneUser Interaction
PassiveConfidentiality
NoneIntegrity
NoneAvailability
LowSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS: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
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
LowCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Nothings | Stb Truetype.h | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| 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
| Reference | Source | Link | Tags |
|---|---|---|---|
| vuldb.com/submit/780559 | [email protected] | vuldb.com | Third Party Advisory, VDB Entry |
| vuldb.com/vuln/354647/cti | [email protected] | vuldb.com | Permissions Required, VDB Entry |
| gist.github.com/d0razi/c11dd07c75f3b795e4f8bbfd6e2f0d29 | [email protected] | gist.github.com | Exploit, Third Party Advisory |
| vuldb.com/vuln/354647 | [email protected] | vuldb.com | Third Party Advisory, VDB Entry |
| 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
| Source | Time | Event |
|---|---|---|
| CNA | 2026-04-01T00:00:00.000Z | Advisory disclosed |
| CNA | 2026-04-01T02:00:00.000Z | VulDB entry created |
| CNA | 2026-04-01T14:45:23.000Z | VulDB entry last update |
There are currently no legacy QID mappings associated with this CVE.