CVE-2025-53367: DjVuLibre OOB-Write Vulnerability in MMRDecoder
Noroxi assessment
Priority: Monitor (action score 33/100)
- Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.87% (FIRST EPSS); higher than 58.6% of all records.
- Someone with local access to the system can trigger it. No account or password is required. No special conditions are required; it is repeatable.
- Fixed version: DjvuNet DjVuLibre 3.5.29.
Low priority for now. Upgrade to DjvuNet DjVuLibre 3.5.29 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
DjVuLibre is a GPL implementation of DjVu, a web-centric format for distributing documents and images. Prior to version 3.5.29, the MMRDecoder::scanruns method is affected by an OOB-write vulnerability, because it does not check that the xr pointer stays within the bounds of the allocated buffer. This can lead to writes beyond the allocated memory, resulting in a heap corruption condition. An out-of-bounds read with pr is also possible for the same reason. This issue has been patched in version 3.5.29.
- Published
- Jul 3, 2025
- Updated
- Jun 17, 2026
- EPSS
- 0.8% · 58th percentile
- CWE
- CWE-125
Report tools
Action score
33
Monitor
Low priority for now.
- CVSS
- 33 / 40 · 8.4 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.8%
CISA SSVC decision
- Exploitation
- proof of concept
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- —
- CNA · GitHub_M
- 8.4
- NVD has not scored this yet; the score shown is the CNA’s.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- Proof of concept exists, no weaponized module
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
—
Versions reported by the vendor
Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.
DjvuNet DjVuLibre
- < 3.5.29affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:11 | djvulibre | before 3.5.28-2.2~deb11u1 | 3.5.28-2.2~deb11u1 |
| Debian:12 | djvulibre | before 3.5.28-2.1~deb12u1 | 3.5.28-2.1~deb12u1 |
| Debian:13 | djvulibre | before 3.5.28-2.1 | 3.5.28-2.1 |
| openSUSE:Leap 15.6 | djvulibre | before 3.5.27-150200.11.17.1 | 3.5.27-150200.11.17.1 |
| openSUSE:Tumbleweed | djvulibre | before 3.5.29-1.1 | 3.5.29-1.1 |
| SUSE:Linux Enterprise Module for Desktop Applications 15 SP6 | djvulibre | before 3.5.27-150200.11.17.1 | 3.5.27-150200.11.17.1 |
| SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 | djvulibre | before 3.5.25.3-5.25.1 | 3.5.25.3-5.25.1 |
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| DjvuNet DjVuLibre | 3.5.29 · description | Vendor (CNA) |
| debian:djvulibre | 3.5.28-2.1~deb12u1 · Debian:12 | Package registry (OSV) |
| opensuse:djvulibre | 3.5.27-150200.11.17.1 · openSUSE:Leap 15.6 | Package registry (OSV) |
| suse:djvulibre | 3.5.25.3-5.25.1 · SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5 | Package registry (OSV) |
| suse:djvulibre | 3.5.27-150200.11.17.1 · SUSE:Linux Enterprise Module for Desktop Applications 15 SP6 | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Proof-of-concept repository on GitHub ×2
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Proof-of-concept repository on GitHub | stars:0 | 2025-07-18 |
| Proof-of-concept repository on GitHub | stars:0 | 2025-11-17 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Published
- First PoC+14 d
- TodayOct 30, 2026+483 d
No history yet (it accumulates with the daily EPSS job).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- No account or password is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- Integrity
- Availability
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- A
- Scope
- X
Weakness class (CWE)
CWE-125 · Out-of-bounds ReadCVSS vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (8 more)Show less
- github.com/github/securitylab/tree/main/SecurityExploits/DjVuLibre/MMRDecoder_scanruns_CVE-2025-53367
- securitylab.github.com/advisories/GHSL-2025-055_DjVuLibre/
- sourceforge.net/p/djvu/djvulibre-git/ci/33f645196593d70bd5e37f55b63886c31c82c3da
- www.openwall.com/lists/oss-security/2025/07/03/1
- www.openwall.com/lists/oss-security/2025/07/03/1
- www.openwall.com/lists/oss-security/2025/07/18/3
- lists.debian.org/debian-lts-announce/2025/07/msg00007.html
- github.blog/security/vulnerability-research/cve-2025-53367-an-exploitable-out-of-bounds-write-in-djvulibre/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.