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CVE-2017-5196

25
FAUCET Score

CVE-2017-5196 describes an out-of-bounds read vulnerability in Irssi versions 0.8.18 through 0.8.20, allowing remote attackers to trigger a denial of service by sending malformed, non-UTF8 strings. This vulnerability has a CVSSv3 score of 7.5 (High), indicating it can be exploited remotely with low attack complexity, requiring no user interaction or privileges, to achieve high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.8.18, < 0.8.21CPE matchmatch criteria
cpe:2.3:a:irssi:irssi:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
5.05%
Probability of exploitation in next 30 days
EPSS Percentile
91.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0505 is in the 85th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2017-5196Moderate

irssi: Out of bounds read in certain incomplete character sequences

Jan 5, 2017

References

irssi.org / security/irssi_sa_2017_01.txt
PatchVendor Advisory
security.gentoo.org / glsa/201701-45
Third Party Advisory
openwall.com / lists/oss-security/2017/01/06/1
Mailing ListThird Party Advisory
securityfocus.com / bid/95310
Third Party AdvisoryVDB Entry