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Fencer Vulns
high 7.5

CVE-2025-53816 json

GHSL-2025-058 - 7-Zip Multi-byte write heap buffer overflow in NCompress::NRar5::CDecoder

published 2025-07-17 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-21791

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits
0
none known

Summary

7-Zip is a file archiver with a high compression ratio. Zeroes written outside heap buffer in RAR5 handler may lead to memory corruption and denial of service in versions of 7-Zip prior to 25.0.0. Version 25.0.0 contains a fix for the issue.

Patch / fix

  • 7-zip 7-zip 25.00
  • 7zip-rar Debian 14, Debian 13 25.00+ds-1
  • p7zip-rar Debian 12 16.02+really25.00+ds-0+deb12u1
  • p7zip-rar Debian 13 16.02+transitional.1

debian advisories DEBIAN-CVE-2025-53816

  • 7zip SLES for SAP applications 16.0, SLES 16.0 25.01-160000.1.1

suse advisories SUSE-SU-2026:20592-1

  • 7zip openSUSE Leap 16.0 25.01-160000.1.1
  • 7zip openSUSE Tumbleweed 25.01-1.1

opensuse advisories openSUSE-SU-2026:20273-1openSUSE-SU-2025:15523-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-181-01 updated cvss 5.0

Mitsubishi Electric MELSOFT Update Manager SW1DND-UDM-M

  • Mitsubishi Electric MELSOFT Update Manager SW1DND-UDM-M >=1.000A, <=1.014Q
    affected: vendor fix, mitigation “Mitsubishi Electric has identified the following specific workarounds and mitigations users can apply to reduce risk:” mitsubishielectric.co.jp

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

red hat product security vex CVE-2025-53816 updated cvss 4.0

7zip: 7-Zip heap buffer overflow

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
15 mo ago

Exploit prediction

0.73% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • securitylab.github.com https://securitylab.github.com/advisories/GHSL-2025-058_7-Zip/ referenced PoC, tagged "exploit" by a source, unverified
  • openwall.com https://www.openwall.com/lists/oss-security/2025/07/18/1 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 5.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
CNA 4.0 5.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/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 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • ipavlov 7-Zip

Classification

Weakness
  • CWE-122 Heap-based Buffer Overflow

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.