CVE-2025-3407: A vulnerability was found in Nothings stb up to f056911

Q: How do I fix CVE-2025-3407?

stb image.h: upgrade to newer than 2.13. Exact commands for each OS are on this page.

Q: Is CVE-2025-3407 being exploited?

CVE-2025-3407 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-3407 affect?

CVE-2025-3407 affects stb image.h. Severity is medium (CVSS 6.3). A vulnerability was found in Nothings stb up to f056911. It has been declared as critical. Affected by this vulnerability is the function stbhw_build_tileset_from_image. The manipulation of the argument h_count/v_count leads to out-of-bound

Q: How urgent is CVE-2025-3407?

Priority 32/100. No elevated risk signals yet.

Routine

MEDIUM 6.3UPGRADE

CVE-2025-3407 is a medium-severity flaw (CVSS 6.3) affecting stb image.h. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in Nothings stb up to f056911. It has been declared as critical. Affected by this vulnerability is the function stbhw_build_tileset_from_image. The manipulation of the argument h_count/v_count leads to out-of-bounds read. The attack can be launched remotely. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. T

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-119, CWE-125
Published	2025-04-08
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: nothings

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-04-08 04:15 UTCPublished CVE record published
2026-06-17 09:19 UTCUpdated Record last modified

nothings stb image.h UPGRADE

Affected: <= 2.13

Fixed in: newer than 2.13

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy stb-image.h || rpm -q stb-image.h || stb-image.h --version

2. UPGRADE to newer than 2.13 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade stb-image.h

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade stb-image.h

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-3407?

stb image.h: upgrade to newer than 2.13. Exact commands for each OS are on this page.

Is CVE-2025-3407 being exploited?

CVE-2025-3407 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-3407 affect?

CVE-2025-3407 affects stb image.h. Severity is medium (CVSS 6.3). A vulnerability was found in Nothings stb up to f056911. It has been declared as critical. Affected by this vulnerability is the function stbhw_build_tileset_from_image. The manipulation of the argument h_count/v_count leads to out-of-bound

How urgent is CVE-2025-3407?

Priority 32/100. No elevated risk signals yet.

Related CVEs

CVE-2025-3409 MEDIUM 6.3 UPGRADE A vulnerability classified as critical has been found in Nothings stb up to f056911
CVE-2025-3408 MEDIUM 6.3 UPGRADE A vulnerability was found in Nothings stb up to f056911
CVE-2025-3406 MEDIUM 4.3 UPGRADE A vulnerability was found in Nothings stb up to f056911

References

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