High severity7.5NVD Advisory· Published May 23, 2017· Updated Jun 17, 2026

CVE-2015-4054

Description

PgBouncer before 1.5.5 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by sending a password packet before a startup packet.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Pgbouncer/Pgbouncer2 versions
cpe:2.3:a:pgbouncer:pgbouncer:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:pgbouncer:pgbouncer:*:*:*:*:*:*:*:*range: <=1.5.4
- (no CPE)range: <1.5.5

Patches

Vulnerability mechanics

References

github.com/pgbouncer/pgbouncer/commit/74d6e5f7de5ec736f71204b7b422af7380c19ac5nvdPatchThird Party Advisory
github.com/pgbouncer/pgbouncer/commit/edab5be6665b9e8de66c25ba527509b229468573nvdPatchThird Party Advisory
github.com/pgbouncer/pgbouncer/issues/42nvdExploitThird Party Advisory
www.openwall.com/lists/oss-security/2015/05/22/5nvdMailing ListThird Party Advisory
www.securityfocus.com/bid/74751nvdThird Party AdvisoryVDB Entry
pgbouncer.github.io/changelog.htmlnvdRelease NotesThird Party Advisory
security.gentoo.org/glsa/201701-24nvdThird Party Advisory

News mentions

No linked articles in our index yet.

cvss	0.488
epss	0.003
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000