CVE-2015-0242 [High] | Out-of-bounds Write in Postgresql

Stack-based buffer overflow in the *printf function implementations in PostgreSQL before 9.0.19, 9.1.x before 9.1.15, 9.2.x before 9.2.10, 9.3.x before 9.3.6, and 9.4.x before 9.4.1, when running on a Windows system, allows remote authenticated users to cause a denial of service (crash) and possibly execute arbitrary code via a floating point number with a large precision, as demonstrated by using the to_char function.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-05-03	3.38%	3.21%	-0.17%
2	2025-12-03	2.20%	3.38%	+1.17%
3	2025-10-31	—	2.20%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-05-03

3.38%

3.21%

-0.17%

2025-12-03

2.20%

3.38%

+1.17%

2025-10-31

—

2.20%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.8	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.8	5.9	[email protected]
6.5	2.0	MEDIUM	`AV:N/AC:L/Au:S/C:P/I:P/A:P` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:S) A single authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:P) Partial integrity impact. Availability impact (A:P) Partial availability impact.	8.0	6.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

8.8

3.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L): A normal user session is enough; they don’t have to be admin.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

2.8

5.9

[email protected]

6.5

2.0

MEDIUM

AV:N/AC:L/Au:S/C:P/I:P/A:P Click to expand

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:S): A single authentication is required.
Confidentiality impact (C:P): Partial confidentiality impact.
Integrity impact (I:P): Partial integrity impact.
Availability impact (A:P): Partial availability impact.

8.0

6.4

[email protected]

OS Trackers for CVE-2015-0242

vendor	priority	summary	link
`gentoo`	normal	CVE-2015-0242: 1 GLSA(s) (201507-20), 1 atom(s) (dev-db/postgresql); latest impact normal.	https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-0242
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2015-0242
`ubuntu`	low	CVE-2015-0242 low priority: Ubuntu including 2 source packages (postgresql-9.1, postgresql-9.4), 8 status rows across 4 suites (precise, trusty, upstream, vivid): DNE 4, not-affected 4.	https://ubuntu.com/security/CVE-2015-0242

Affected software / configurations for CVE-2015-0242

Vendor	Product	Version	Raw CPE
postgresql	postgresql	< 9.0.19	cpe:2.3:a:postgresql:postgresql::::::::
postgresql	postgresql	>= 9.1.0, < 9.1.15	cpe:2.3:a:postgresql:postgresql::::::::
postgresql	postgresql	>= 9.2.0, < 9.2.10	cpe:2.3:a:postgresql:postgresql::::::::
postgresql	postgresql	>= 9.3.0, < 9.3.6	cpe:2.3:a:postgresql:postgresql::::::::
postgresql	postgresql	>= 9.4.0, < 9.4.1	cpe:2.3:a:postgresql:postgresql::::::::
debian	debian_linux	7.0	cpe:2.3:o:debian:debian_linux:7.0:::::::*
debian	debian_linux	8.0	cpe:2.3:o:debian:debian_linux:8.0:::::::*

References for CVE-2015-0242

URL	Tags
http://www.debian.org/security/2015/dsa-3155	Third Party Advisory
http://www.postgresql.org/about/news/1569/	Vendor Advisory
http://www.postgresql.org/docs/9.4/static/release-9-4-1.html	Release Notes Vendor Advisory
http://www.postgresql.org/docs/current/static/release-9-0-19.html	Release Notes Vendor Advisory
http://www.postgresql.org/docs/current/static/release-9-1-15.html	Release Notes Vendor Advisory
http://www.postgresql.org/docs/current/static/release-9-2-10.html	Release Notes Vendor Advisory
http://www.postgresql.org/docs/current/static/release-9-3-6.html	Release Notes Vendor Advisory

URL

CVE-2015-0242

Exploit prediction scoring system (EPSS) score for CVE-2015-0242

Common vulnerability scoring system (CVSS) metrics for CVE-2015-0242

Weakness enumeration for CVE-2015-0242

OS Trackers for CVE-2015-0242

Affected software / configurations for CVE-2015-0242

References for CVE-2015-0242