MEDIUM
CVE-2011-1923
CWE-310Published: June 20, 2012· Updated: Jun 16, 2026
4.0
CVSS v3.1
Official Description
The Diffie-Hellman key-exchange implementation in dhm.c in PolarSSL before 0.14.2 does not properly validate a public parameter, which makes it easier for man-in-the-middle attackers to obtain the shared secret key by modifying network traffic, a related issue to CVE-2011-5095.
Technical Analysis
CVE-2011-1923 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityP
IntegrityP
AvailabilityNone
AV:N/AC:H/Au:N/C:P/I:P/A:N
Affected Vendors & Products
polarssl1 product(s)
polarssl
Source: NVD CPE · 8 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
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GitHub PoC Search
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Rapid7 / Metasploit
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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 (8)
→
http://polarssl.org/trac/wiki/SecurityAdvisory201101Vendor Advisory
→
http://polarssl.org/trac/wiki/SecurityAdvisory201101Vendor Advisory
Quick Facts
CVE IDCVE-2011-1923
CVSS Score4.0 / 10
SeverityMEDIUM
WeaknessCWE-310
CISA KEVNo
Affected1 vendor(s)
PublishedJun 20, 2012
Related CVEs (CWE-310)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2011-1923 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.COM. CVE data is provided under the NVD usage policy.