A null pointer dereference bug affects the 16.02 and many old versions of p7zip. A lack of null pointer check for the variable folders.PackPositions in function CInArchive::ReadAndDecodePackedStreams in CPP/7zip/Archive/7z/7zIn.cpp, as used in the 7z.so library and in 7z applications, will cause a crash and a denial of service when decoding malformed 7z files.
CVE-2016-9296
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-17. NVD baseline CVSS 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 41(Track)EG Risk 41/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation7% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 7%
- EPSS %ILE
- 94%
- KEV
- Not listed
Published
November 12, 2016
Last Modified
June 17, 2026
References (8)
- cve@mitrehttp://www.securityfocus.com/bid/94294
- cve@mitrehttps://github.com/yangke/7zip-null-pointer-dereference
- cve@mitrehttps://sourceforge.net/p/p7zip/bugs/185/
- cve@mitrehttps://sourceforge.net/p/p7zip/discussion/383043/thread/648d34db/
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/94294
- af854a3a-2127-422b-91ae-364da2661108https://github.com/yangke/7zip-null-pointer-dereference
- af854a3a-2127-422b-91ae-364da2661108https://sourceforge.net/p/p7zip/bugs/185/
- af854a3a-2127-422b-91ae-364da2661108https://sourceforge.net/p/p7zip/discussion/383043/thread/648d34db/
Affected Packages
(16 across 16 ecosystems)
Alpine:v3.10(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| p7zip | 15.09-r0 ... 9.38.1-r0 (13 versions) | 16.02-r1 | — |
Alpine:v3.11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| p7zip | 15.09-r0 ... 9.38.1-r0 (13 versions) | 16.02-r1 | — |
Alpine:v3.12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| p7zip | 15.09-r0 ... 9.38.1-r0 (13 versions) | 16.02-r1 | — |
Alpine:v3.13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| p7zip | 15.09-r0 ... 9.38.1-r0 (13 versions) | 16.02-r1 | — |
Alpine:v3.14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| p7zip | 15.09-r0 ... 9.38.1-r0 (13 versions) | 16.02-r1 | — |
Alpine:v3.15(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| p7zip | 15.09-r0 ... 9.38.1-r0 (13 versions) | 16.02-r1 | — |
Alpine:v3.16(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| p7zip | 15.09-r0 ... 9.38.1-r0 (13 versions) | 16.02-r1 | — |
Alpine:v3.17(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| p7zip | 15.09-r0 ... 9.38.1-r0 (13 versions) | 16.02-r1 | — |
Alpine:v3.5(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| p7zip | 15.09-r0 ... 9.38.1-r0 (13 versions) | 16.02-r1 | — |
Alpine:v3.6(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| p7zip | 15.09-r0 ... 9.38.1-r0 (13 versions) | 16.02-r1 | — |
Alpine:v3.7(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| p7zip | 15.09-r0 ... 9.38.1-r0 (13 versions) | 16.02-r1 | — |
Alpine:v3.8(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| p7zip | 15.09-r0 ... 9.38.1-r0 (13 versions) | 16.02-r1 | — |
Alpine:v3.9(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| p7zip | 15.09-r0 ... 9.38.1-r0 (13 versions) | 16.02-r1 | — |
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| p7zip | — | 16.02+dfsg-2 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| p7zip | — | 16.02+dfsg-2 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| p7zip | — | 16.02+dfsg-2 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 21× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 140 total refreshes for this CVE.
- 2026-09-19 15:35 UTCEPSS rescore
- 2026-09-18 19:22 UTCEPSS rescore
- 2026-09-18 18:06 UTCOSV refresh
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- 2026-08-30 21:34 UTCOSV refresh
- 2026-08-28 21:35 UTCEPSS rescore
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- 2026-08-16 02:10 UTCEPSS rescore
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- 2026-08-14 08:29 UTCOSV refresh
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- 2026-07-29 17:07 UTCOSV refresh
- 2026-07-28 15:31 UTCEPSS rescore
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- 2026-07-23 01:24 UTCEG score recompute
- 2026-07-22 22:04 UTCEG score recompute
- 2026-07-22 14:04 UTCEPSS rescore
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- 2026-07-12 06:37 UTCOSV refresh
- 2026-07-12 05:43 UTCEPSS rescore
- 2026-07-12 05:43 UTCEPSS rescore
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- 2026-07-09 19:06 UTCEPSS rescore
- 2026-07-08 15:10 UTCEPSS rescore
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- 2026-06-30 23:19 UTCEPSS rescore
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- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-23 12:28 UTCOSV refresh
- 2026-06-22 14:23 UTCEPSS rescore
- 2026-06-19 19:23 UTCEPSS rescore
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- 2026-06-13 22:57 UTCEPSS rescore
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2016-9296?
When was CVE-2016-9296 disclosed?
Is CVE-2016-9296 actively exploited?
What is the CVSS score of CVE-2016-9296?
How do I remediate CVE-2016-9296?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2016-9296
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