CVE-2018-11813 [High] | Security Vulnerability in Libjpeg

CVE-2018-11813 is rated Moderate Risk (48/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.28%). Review affected assets and schedule remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-04-27	0.23%	0.28%	+0.05%
2	2026-03-24	0.30%	0.23%	-0.07%
3	2025-12-03	—	0.30%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-04-27

0.23%

0.28%

+0.05%

2026-03-24

0.30%

0.23%

-0.07%

2025-12-03

—

0.30%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.5	3.0	HIGH	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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: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:N) Data isn’t meaningfully altered or forged. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	3.9	3.6	[email protected]
5.0	2.0	MEDIUM	`AV:N/AC:L/Au:N/C:N/I:N/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:N) No authentication is required. Confidentiality impact (C:N) No confidentiality impact. Integrity impact (I:N) No integrity impact. Availability impact (A:P) Partial availability impact.	10.0	2.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.5

3.0

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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: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:N): Data isn’t meaningfully altered or forged.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

3.9

3.6

[email protected]

5.0

2.0

MEDIUM

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

10.0

2.9

[email protected]

OS Trackers for CVE-2018-11813

vendor	priority	summary	link
`alpine`	high	CVE-2018-11813: 1 source package rows (libjpeg-turbo); 10 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 0.	https://security.alpinelinux.org/vuln/CVE-2018-11813
`debian`	unimportant	CVE-2018-11813 unimportant priority: Debian including 2 source packages (libjpeg-turbo, libjpeg9), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6.	https://security-tracker.debian.org/tracker/CVE-2018-11813
`redhat`	low	—	https://access.redhat.com/security/cve/CVE-2018-11813
`suse`	medium	CVE-2018-11813 severity moderate: SUSE including 316 source package names (0.38.1:libjpeg8-8.1.2-5.7.1, 0.45.0.7.7.1:libjpeg8-8.1.2-5.7.1, …), 491 product×package rows across 88 product lines (Container bci/openjdk, Container bci/openjdk-devel, … (88 product lines)): Fixed 260, Known Affected 231.	https://www.suse.com/security/cve/CVE-2018-11813/
`ubuntu`	low	CVE-2018-11813 low priority: Ubuntu including 3 source packages (libjpeg-turbo, libjpeg6b, libjpeg9), 54 status rows across 20 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 25, ignored 13, released 8, needed 7, DNE 1.	https://ubuntu.com/security/CVE-2018-11813

Affected software / configurations for CVE-2018-11813

Vendor	Product	Version	Raw CPE
ijg	libjpeg	9c	cpe:2.3:a:ijg:libjpeg:9c:::::::*

References for CVE-2018-11813

URL	Tags
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00015.html
http://www.ijg.org/files/jpegsrc.v9d.tar.gz
https://access.redhat.com/errata/RHSA-2019:2052
https://bugs.gentoo.org/727908
https://github.com/ChijinZ/security_advisories/blob/master/libjpeg-v9c/mail.pdf	Mailing List Third Party Advisory
https://github.com/ChijinZ/security_advisories/tree/master/libjpeg-v9c	Third Party Advisory

URL

CVE-2018-11813

Exploit prediction scoring system (EPSS) score for CVE-2018-11813

Common vulnerability scoring system (CVSS) metrics for CVE-2018-11813

Weakness enumeration for CVE-2018-11813

OS Trackers for CVE-2018-11813

Affected software / configurations for CVE-2018-11813

References for CVE-2018-11813