CVE-2025-43964: In LibRaw before 0.21.4, tag 0x412 processing in phase_one_correct in decoders/load_mfbacks.cpp does
Affects librawSource GCVE Database
Not known to be exploited · CVSS 2.9 Low · fixed in 0.17.1-1ubuntu0.5+esm1 : update libraw when convenient.
Data as of 9 Nov 2026, 14:33 UTC
Thin evidence
One scorer or none| CNA (mitre) | CVSS 3.1 | 2.9 |
|---|
- Patch
- Available – fixed in 0.17.1-1ubuntu0.5+esm1, 0.18.8-1ubuntu0.4+esm1, 0.19.5-1ubuntu1.4 +2
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:LExploitation evidence
Disclosed: evidence found.
CVE published 20 Apr 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Patches and advisories
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10darktablepkg:deb/ubuntu/darktable?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10dcrawpkg:deb/ubuntu/dcraw?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10digikampkg:deb/ubuntu/digikam?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10exactimagepkg:deb/ubuntu/exactimage?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10kodipkg:deb/ubuntu/kodi?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10rawtherapeepkg:deb/ubuntu/rawtherapee?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Apply the official patches provided by Ubuntu as detailed in security notice USN-7485-1. Updating to the fixed package versions (e.g., 0.17.1-1ubuntu0.5+esm1 and later) will remediate the vulnerability. After updating, restart the session to ensure changes take effect. No additional mitigation steps are indicated by the vendor advisory.
Description
LibRaw versions before 0.21.4 contain a vulnerability in the processing of tag 0x412 within the phase_one_correct function in decoders/load_mfbacks.cpp, where minimum values for w0 and w1 are not enforced. This flaw can lead to out-of-bounds reads and potentially cause applications using LibRaw to crash, resulting in denial of service. The issue is addressed by updates available for multiple Ubuntu releases.
References
- ubuntu.com/security/CVE-2025-43964 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-43964 (opens in a new tab)
- github.com/LibRaw/LibRaw/commit/a50dc3f1127d2e37a9b39f57ad9bb2ebb60f18c0 (opens in a new tab)
- github.com/LibRaw/LibRaw/compare/0.21.3...0.21.4 (opens in a new tab)
- libraw.org/news/libraw-0-21-4-release (opens in a new tab)
- ubuntu.com/security/notices/USN-7485-1 (opens in a new tab)