HIGH
CVE-2016-9399
CWE-617Published: March 23, 2017· Updated: Jun 17, 2026
7.5
CVSS v3.1
Official Description
The calcstepsizes function in jpc_dec.c in JasPer 1.900.22 allows remote attackers to cause a denial of service (assertion failure) via unspecified vectors.
Technical Analysis
CVE-2016-9399 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
Fedora1 product(s)
fedora
jasper_project1 product(s)
jasper
openSUSE1 product(s)
leap
Source: NVD CPE · 5 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 (16)
→
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00082.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00085.htmlMailing List · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2016/11/17/1Mailing List · Patch · Third Party Advisory
→
http://www.securityfocus.com/bid/94380Third Party Advisory · VDB Entry
→
https://blogs.gentoo.org/ago/2016/11/16/jasper-multiple-assertion-failurePatch · Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=1396981Issue Tracking · Patch · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00082.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00085.htmlMailing List · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2016/11/17/1Mailing List · Patch · Third Party Advisory
→
http://www.securityfocus.com/bid/94380Third Party Advisory · VDB Entry
→
https://blogs.gentoo.org/ago/2016/11/16/jasper-multiple-assertion-failurePatch · Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=1396981Issue Tracking · Patch · Third Party Advisory
Quick Facts
CVE IDCVE-2016-9399
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-617
CISA KEVNo
Affected3 vendor(s)
PublishedMar 23, 2017
Related CVEs (CWE-617)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2016-9399 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.