CVE-2017-7191: irssi Use After Free
CVSS: 9.8v3.0CriticalModified
AliasesUBUNTU-CVE-2017-7191DEBIAN-CVE-2017-7191
Published 27-03-2017Last modified 05-08-2024
Vulnerability summary
CVE-2017-7191 is a critical (CVSS 9.8) Use After Free vulnerability in irssi. EPSS estimates a 3.36% chance of exploitation in the next 30 days, higher than 88.6% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.0 (NVD)EPSS score
3.36%
0%100%
Low · +0.37 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 27-03-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The netjoin processing in Irssi 1.x before 1.0.2 allows attackers to cause a denial of service (use-after-free) and possibly execute arbitrary code via unspecified vectors.
CVSS metrics
4 scores · 3 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
3.36%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
+0.37 pp
From 2.99% on 21-09-2026
21-09-202621-10-2026
EPSS score3.36%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- irssi< 1.0.2-1
Irssi1 product
- irssi≤ 1.0.1
Ubuntu1 product
- irssi< 0.8.15-5ubuntu3.1 | < 0.8.19-1ubuntu1.3
3 vendors · 3 products
References
6 links- github.com/irssi/irssi/commit/77b2631c78461965bc9a7414aae206b5c514e1b3X Refsource CONFIRMPatchThird Party Advisory
