CVE-2015-1379: dest-unreach socat Improper Input Validation
Vulnerability summary
CVE-2015-1379 is a high (CVSS 7.5) Improper Input Validation vulnerability in dest-unreach socat. EPSS estimates a 3.93% chance of exploitation in the next 30 days, higher than 90.3% of scored vulnerabilities.
Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 4% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Timeline
- 08-06-2017PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The signal handler implementations in socat before 1.7.3.0 and 2.0.0-b8 allow remote attackers to cause a denial of service (process freeze or crash).
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
3.93%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
No change 0.00 pp
From 3.93% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- socat< 1.7.2.4-2
Dest-unreach1 product
- socat≤ 1.7.2.4 | 2.0.0-b8
Mageia1 product
- socat< 2.0.0-0.b8.1.mga4
Suse1 product
- socat&distro=SUSE Linux Enterprise Server LTSS Extended Security 12 SP5< 1.7.2.4-4.6.1
Ubuntu1 product
- socat< 1.7.2.3-1ubuntu0.1~esm1
5 vendors · 5 products
References
14 links- www.openwall.com/lists/oss-security/2015/04/06/4Mailing ListX Refsource MLISTPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2015/01/27/19Mailing ListX Refsource MLISTPatchThird Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=1185711X Refsource CONFIRMIssue TrackingPatchThird Party AdvisoryVDB Entry
- bugzilla.suse.com/922903REPORT
