CVE-2017-7548 [High] | Denial of Service in Postgresql

CVE-2017-7548 is rated Moderate Risk (63.1/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.52%). EPSS rose +2.45% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	1.07%	3.52%	+2.45%
2	2026-05-26	1.18%	1.07%	-0.11%
3	2026-05-17	—	1.18%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

1.07%

3.52%

+2.45%

2026-05-26

1.18%

1.07%

-0.11%

2026-05-17

—

1.18%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.5	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N` 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:N) No account or special rights needed—anonymous or random user is enough. 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:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:N) Service keeps running; no real outage angle.	3.9	3.6	[email protected]
4.0	2.0	MEDIUM	`AV:N/AC:L/Au:S/C:N/I:P/A:N` 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:N) No confidentiality impact. Integrity impact (I:P) Partial integrity impact. Availability impact (A:N) No availability impact.	8.0	2.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.5

3.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N 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:N): No account or special rights needed—anonymous or random user is enough.
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:N): Doesn’t really leak secrets in a meaningful way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N): Service keeps running; no real outage angle.

3.9

3.6

[email protected]

4.0

2.0

MEDIUM

AV:N/AC:L/Au:S/C:N/I:P/A:N 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:N): No confidentiality impact.
Integrity impact (I:P): Partial integrity impact.
Availability impact (A:N): No availability impact.

8.0

2.9

[email protected]

OS Trackers for CVE-2017-7548

vendor	priority	summary	link
`alpine`	—	CVE-2017-7548: 3 source package rows (postgresql, postgresql14, postgresql15); 16 state rows across 11 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-community, 3.19-main, 3.20-community, 3.20-main, edge-community, edge-main); fixed 16, open 0.	https://security.alpinelinux.org/vuln/CVE-2017-7548
`gentoo`	normal	CVE-2017-7548: 1 GLSA(s) (201710-06), 1 atom(s) (dev-db/postgresql); latest impact normal.	https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2017-7548
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2017-7548
`suse`	high	CVE-2017-7548 severity important: SUSE including 59 source package names (libecpg6, libecpg6-10.10-1.15.1, …), 244 product×package rows across 34 product lines (SUSE Linux Enterprise Desktop 12 SP2, SUSE Linux Enterprise Desktop 12 SP3, … (34 product lines)): Fixed 210, Known Not Affected 34.	https://www.suse.com/security/cve/CVE-2017-7548/
`ubuntu`	medium	CVE-2017-7548 medium priority: Ubuntu including 5 source packages (postgresql-10, postgresql-9.1, postgresql-9.3, postgresql-9.5, postgresql-9.6), 40 status rows across 8 suites (artful, bionic, cosmic, disco, trusty, upstream, xenial, zesty): DNE 29, released 6, not-affected 3, needs-triage 2.	https://ubuntu.com/security/CVE-2017-7548

Affected software / configurations for CVE-2017-7548

Vendor	Product	Version	Raw CPE
postgresql	postgresql	>= 9.4, < 9.4.13	cpe:2.3:a:postgresql:postgresql::::::::
postgresql	postgresql	>= 9.5, < 9.5.8	cpe:2.3:a:postgresql:postgresql::::::::
postgresql	postgresql	>= 9.6, < 9.6.4	cpe:2.3:a:postgresql:postgresql::::::::
debian	debian_linux	8.0	cpe:2.3:o:debian:debian_linux:8.0:::::::*
debian	debian_linux	9.0	cpe:2.3:o:debian:debian_linux:9.0:::::::*

References for CVE-2017-7548

URL	Tags
http://www.debian.org/security/2017/dsa-3935	Third Party Advisory
http://www.debian.org/security/2017/dsa-3936	Third Party Advisory
http://www.securityfocus.com/bid/100276	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039142	Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:2677	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2678	Third Party Advisory
https://security.gentoo.org/glsa/201710-06	Third Party Advisory
https://www.postgresql.org/about/news/1772/	Vendor Advisory

URL

CVE-2017-7548

Exploit prediction scoring system (EPSS) score for CVE-2017-7548

Common vulnerability scoring system (CVSS) metrics for CVE-2017-7548

Weakness enumeration for CVE-2017-7548

OS Trackers for CVE-2017-7548

Affected software / configurations for CVE-2017-7548

References for CVE-2017-7548