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No exploitation reportedFix available

CVE-2019-5164

No exploitation reported by the sources we read.

  • Published2019-12-03
  • WeaknessCWE-306

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An exploitable code execution vulnerability exists in the ss-manager binary of Shadowsocks-libev 3.3.2. Specially crafted network packets sent to ss-manager can cause an arbitrary binary to run, resulting in code execution and privilege escalation. An attacker can send network packets to trigger this vulnerability.

Timeline

dates in UTC
  1. 2019-12-0322:15CVE publishedNVD

Versions per branch

NVD
Opensuse backports sle
BranchAffectedFixed in
15.0= 15.0no fix published
Opensuse leap
BranchAffectedFixed in
15.1= 15.1no fix published
Shadowsocks shadowsocks-libev
BranchAffectedFixed in
3.3= 3.3.2no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • shadowsocks-libevUbuntu:18.04:LTSall versions · no fixed version listed
  • shadowsocks-libevSUSE:Package Hub 15 SP1all versions · fixed in 3.3.3-bp151.5.3.1
  • shadowsocks-libevopenSUSE:Tumbleweedall versions · fixed in 3.3.5-1.9
  • shadowsocks-libevopenSUSE:Leap 15.1all versions · fixed in 3.3.3-lp151.2.3.1
  • shadowsocks-libevMageia:7all versions · fixed in 3.3.3-1.mga7
  • shadowsocks-libevDebian:13all versions · fixed in 3.3.3+ds-2
  • shadowsocks-libevDebian:12all versions · fixed in 3.3.3+ds-2
  • shadowsocks-libevCleanStartall versions · fixed in 3.3.4-r0

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.17.8read 2026-10-23
  • CNACVSS 3.07.8known since 2026-10-23
  • NVDCVSS 2.04.6read 2026-10-23
  • CNAweakness (CWE)CWE-306known since 2026-10-23
  • NVDweakness (CWE)CWE-306read 2026-10-23
  • FIRST EPSSEPSS score0.8 %2026-11-09
  • OSVaffected packages—
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2019-12-03
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-rcm9-p88f-cmqm

Frequently asked questions

What is CVE-2019-5164?

An exploitable code execution vulnerability exists in the ss-manager binary of Shadowsocks-libev 3.3.2. Specially crafted network packets sent to ss-manager can cause an arbitrary binary to run, resulting in code execution and privilege escalation. An attacker can send network packets to trigger this vulnerability.

Is CVE-2019-5164 actively exploited?

Active exploitation of CVE-2019-5164 has not been confirmed. Its EPSS score was 0.8% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-5164?

CVE-2019-5164 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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