CVE-2023-31102: Ppmd7.c in 7-Zip before 23.00 allows an integer underflow and invalid read operation via a crafted 7Z archive.
Noroxi assessment
Priority: Plan (action score 47/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 53.9% (FIRST EPSS); higher than 99% of all records.
- Someone with local access to the system can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
- Fixed version: 7zip (Debian:12) 22.01+really25.01+dfsg-0+deb12u1; p7zip (Debian:12) 16.02+really25.01+dfsg-0+deb12u1; 7zip (Debian:13) 23.01+dfsg-1.
Add it to your regular patch cycle. Upgrade to 7zip (Debian:12) 22.01+really25.01+dfsg-0+deb12u1; p7zip (Debian:12) 16.02+really25.01+dfsg-0+deb12u1; 7zip (Debian:13) 23.01+dfsg-1 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
- Published
- Nov 3, 2023
- Updated
- Jun 17, 2026
- EPSS
- 53.9% · 99th percentile
- CWE
- CWE-191
Report tools
Action score
47
Plan
Add it to your regular patch cycle.
- CVSS
- 31 / 40 · 7.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 16 / 30 · 53.9%
CISA SSVC decision
- Exploitation
- proof of concept
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- 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.
| Vendor | Product | CPE |
|---|---|---|
| 7-zip | 7-zip | cpe:2.3:a:7-zip:7-zip |
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
| netapp | active iq unified manager | cpe:2.3:a:netapp:active_iq_unified_manager |
| netapp | oncommand workflow automation | cpe:2.3:a:netapp:oncommand_workflow_automation |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- 7-zip 7-zipbefore 22.01
- netapp active iq unified managerall versions
- netapp oncommand workflow automationall versions
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | 7zip | before 22.01+really25.01+dfsg-0+deb12u1 | 22.01+really25.01+dfsg-0+deb12u1 |
| Debian:12 | p7zip | before 16.02+really25.01+dfsg-0+deb12u1 | 16.02+really25.01+dfsg-0+deb12u1 |
| Debian:13 | 7zip | before 23.01+dfsg-1 | 23.01+dfsg-1 |
| Debian:13 | p7zip | before 16.02+transitional.1 | 16.02+transitional.1 |
Same product
7-zip: all recordsOther highest-scoring records for the same primary product.
- CVE-2025-04117-Zip Mark-of-the-Web Bypass VulnerabilityKEV72This week
- CVE-2008-6536Unspecified vulnerability in 7-zip before 4.5.7 has unknown impact and remote attack vectors, as demonstrated by the PROTOS GENOME test suit41Plan
- CVE-2025-110017-Zip ZIP File Parsing Directory Traversal Remote Code Execution Vulnerability39Monitor
Published before and after this one in the same product
- ← EarlierCVE-2018-10115May 2, 2018 · Incorrect initialization logic of RAR decoder objects in 7-Zip 18.03 and before can lead to usage of uninitialized memory, allowing remote a32Monitor
- ← EarlierCVE-2022-29072Apr 15, 2022 · 7-Zip through 21.07 on Windows allows privilege escalation and command execution when a file with the .7z extension is dragged to the Help>C31Monitor
- Later →CVE-2023-40481May 2, 2024 · 7-Zip SquashFS File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability35Monitor
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 |
|---|---|---|
| debian:7zip | 22.01+really25.01+dfsg-0+deb12u1 · Debian:12 | Package registry (OSV) |
| debian:p7zip | 16.02+really25.01+dfsg-0+deb12u1 · Debian:12 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
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.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
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.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-191 · Integer Underflow (Wrap or Wraparound)CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (4 more)Show less
Vendor advisories and official records. Exploit/PoC links are deliberately left out.