HIGH
CVE-2019-3862
CWE-130Published: March 21, 2019· Updated: Jun 17, 2026
7.3
CVSS v3.1
Official Description
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
Technical Analysis
CVE-2019-3862 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityLow
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (36)
→
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.htmlThird Party Advisory
→
http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.htmlPatch · Third Party Advisory · VDB Entry
→
http://www.openwall.com/lists/oss-security/2019/03/18/3Mailing List · Patch · Third Party Advisory
→
http://www.securityfocus.com/bid/107485Third Party Advisory · VDB Entry
→
→
https://lists.debian.org/debian-lts-announce/2019/03/msg00032.htmlMailing List · Third Party Advisory
→
https://seclists.org/bugtraq/2019/Mar/25Mailing List · Patch · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20190327-0005/Third Party Advisory
→
Quick Facts
CVE IDCVE-2019-3862
CVSS Score7.3 / 10
SeverityHIGH
WeaknessCWE-130
CISA KEVNo
Affected5 vendor(s)
PublishedMar 21, 2019
Related CVEs (CWE-130)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-3862 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.