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Fencer Intel
medium 5.0

CVE-2014-6387 json

gpc_api.php in MantisBT 1.2.17 and earlier allows remote attackers to bypass authenticated via a password starting will a null byte, which…

published 12y ago modified 4mo ago also EUVD-2014-6271

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

gpc_api.php in MantisBT 1.2.17 and earlier allows remote attackers to bypass authenticated via a password starting will a null byte, which triggers an unauthenticated bind.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2014-6387 updated cvss 5.8

mantis: null byte poisoning in LDAP authentication

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.10% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • mantisbt.org http://www.mantisbt.org/bugs/view.php?id=17640 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.