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Fencer Intel
low 3.3

CVE-2016-7553 json

The buf.pl script before 2.20 in Irssi before 0.8.20 uses weak permissions for the scrollbuffer dump file created between upgrades, which m…

published 2017-02-27 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-8406

cvss
3.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 33%
public exploits
0
none known

Summary

The buf.pl script before 2.20 in Irssi before 0.8.20 uses weak permissions for the scrollbuffer dump file created between upgrades, which might allow local users to obtain sensitive information from private chat conversations by reading the file.

Patch / fix

  • irssi Debian 14, Debian 13, Debian 12 0.8.20-2

debian advisories DEBIAN-CVE-2016-7553

  • irssi Ubuntu 14.04 LTS 0.8.15-5ubuntu3.1
  • irssi Ubuntu 16.04 LTS 0.8.19-1ubuntu1.3

ubuntu advisories UBUNTU-CVE-2016-7553

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • irssi Package Hub 12 0.8.20-9.1

suse advisories SUSE-SU-2016:2524-1

  • irssi openSUSE Tumbleweed 0.8.20-3.1
  • irssi Package Hub 12 0.8.20-9.1

opensuse advisories openSUSE-SU-2024:10455-1openSUSE-SU-2016:2524-1

Vendor advisories

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

red hat product security vex CVE-2016-7553 updated cvss 3.3

irssi: Information disclosure in buf.pl

  • Red Hat Enterprise Linux 6 irssi Red Hat Enterprise Linux 7 irssi
    affected: no fix planned “Will not fix”

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

Exploit prediction

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 3.3 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness

References

Sources

Fencer Intel 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.