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CVE-2016-9775

24
FAUCET Score

CVE-2016-9775 is a local privilege escalation vulnerability affecting the postrm script in Tomcat packages (tomcat6, tomcat7, tomcat8) on various Debian and Ubuntu distributions. A local user with access to the tomcat account could gain root privileges by placing a setgid program in the Catalina directory. This vulnerability has a CVSSv3 score of 7.8 (High), indicating a low attack complexity and requiring low privileges, but leading to high impact on confidentiality, integrity, and availability. There is no known public exploit code (Metasploit, Nuclei, ExploitDB) or evidence of active exploitation, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.74%
Probability of exploitation in next 30 days
EPSS Percentile
50.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0074 is in the 87th percentile among its peer group of 16,985 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

bugs.debian.org / cgi-bin/bugreport.cgi
Mailing ListThird Party Advisory
security.netapp.com / advisory/ntap-20180731-0002
oracle.com / security-alerts/cpuApr2021.html
debian.org / security/2016/dsa-3738
Third Party Advisory
debian.org / security/2016/dsa-3739
Third Party Advisory
openwall.com / lists/oss-security/2016/12/02/10
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2016/12/02/5
Mailing ListThird Party Advisory
securityfocus.com / bid/94643
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-3177-1
Third Party Advisory
ubuntu.com / usn/USN-3177-2
Third Party Advisory