HIGH
CVE-2016-5285
CWE-476Published: November 15, 2019· Updated: Jun 17, 2026
7.5
CVSS v3.1
Official Description
A Null pointer dereference vulnerability exists in Mozilla Network Security Services due to a missing NULL check in PK11_SignWithSymKey / ssl3_ComputeRecordMACConstantTime, which could let a remote malicious user cause a Denial of Service.
Technical Analysis
CVE-2016-5285 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.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
avaya28 product(s)
aura application enablement servicesaura application server 5300aura communication manageraura communication manager messagintbreeze platformcall management systemiqcs1000e firmwarecs1000ecs1000m firmwarecs1000mcs1000e\/cs1000m signaling server firmware+16
Debian1 product(s)
debian linux
Mozilla1 product(s)
nss
Red Hat1 product(s)
enterprise linux
SUSE1 product(s)
linux enterprise server
Source: NVD CPE · 46 total CPE entries
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 (18)
→
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00049.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00049.htmlMailing List · Third Party Advisory
Quick Facts
CVE IDCVE-2016-5285
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-476
CISA KEVNo
Affected5 vendor(s)
PublishedNov 15, 2019
Related CVEs (CWE-476)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2016-5285 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.