5.9

CVE-2016-0762: apache software foundation apache tomcat Observable Discrepancy

Modified
AliasesUBUNTU-CVE-2016-0762GHSA-wxcp-f2c8-x6xv
Published 10-08-2017Last modified 08-10-2026

Vulnerability summary

CVE-2016-0762 is a medium (CVSS 5.9) Observable Discrepancy vulnerability in apache software foundation apache tomcat. EPSS estimates a 7.99% chance of exploitation in the next 30 days, higher than 94.7% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.9, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.9/10
010
Medium · v3.1 (NVD)
EPSS score
7.99%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 14 · Related 6
DLA-728-1DLA-729-1DSA-3720-1DSA-3721-1MGASA-2016-0367RHSA-2017:0455

Timeline

  1. 10-08-2017
    PublishedVulnerability first disclosed.
  2. 08-10-2026
    Last modifiedVulnerability information updated.

Description

The Realm implementations in Apache Tomcat versions 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70 and 6.0.0 to 6.0.45 did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder.

CVSS metrics

5 scores · 3 sources · 3 versions

EPSS trend

Probability

7.99%

Chance of exploitation in the next 30 days

Percentile

95%

Versus all other CVEs

30-day change

No change 0.00 pp

From 7.99% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat7 products
Netapp3 products
Ubuntu3 products
  • tomcat6< 6.0.39-1ubuntu0.1 | < 6.0.45+dfsg-1ubuntu0.1
  • tomcat7< 7.0.68-1ubuntu0.3
  • tomcat8< 8.0.32-1ubuntu1.3
Oracle2 products
Apache1 product
  • tomcat≥ 6.0.0, ≤ 6.0.45 | ≥ 7.0.0, ≤ 7.0.70 | ≥ 8.0, ≤ 8.0.36 | ≥ 8.5.0, ≤ 8.5.4 | 9.0.0:milestone1 | 9.0.0:milestone2 | 9.0.0:milestone3 | 9.0.0:milestone4 | 9.0.0:milestone5 | 9.0.0:milestone6 | 9.0.0:milestone7 | 9.0.0:milestone8 | 9.0.0:milestone9
Apache software foundation1 product
  • apache tomcat9.0.0.M1 to 9.0.0.M9 | 8.5.0 to 8.5.4 | 8.0.0.RC1 to 8.0.36 | 7.0.0 to 7.0.70 | 6.0.0 to 6.0.45
Canonical1 product
Debian1 product
Org.apache.tomcat1 product
  • tomcat≥ 9.0.0M1, < 9.0.0.M10 | ≥ 8.5.0, < 8.5.5 | ≥ 8.0.0.RC1, < 8.0.37 | ≥ 7.0.0, < 7.0.72 | ≥ 6.0.0, < 6.0.46

9 vendors · 20 products

References

50 links
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