CVE-2018-5809 [High] | Out-of-bounds Write in Libraw

CVE-2018-5809 is rated High Risk (65.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.79%). High exploitation likelihood—assess exposure and prioritize remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	1.92%	2.79%	+0.87%
2	2025-11-07	2.21%	1.92%	-0.29%
3	2025-03-30	—	2.21%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

1.92%

2.79%

+0.87%

2025-11-07

2.21%

1.92%

-0.29%

2025-03-30

—

2.21%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.8	3.0	HIGH	`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:R) A real person has to do something—click, install, enable—otherwise it doesn’t land. 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]
6.8	2.0	MEDIUM	`AV:N/AC:M/Au:N/C:P/I:P/A:P` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:M) Exploitation needs some favorable conditions, but not exceptional ones. Authentication (AU:N) No authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:P) Partial integrity impact. Availability impact (A:P) Partial availability impact.	8.6	6.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

8.8

3.0

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R): A real person has to do something—click, install, enable—otherwise it doesn’t land.
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]

6.8

2.0

MEDIUM

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

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:M): Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N): No authentication is required.
Confidentiality impact (C:P): Partial confidentiality impact.
Integrity impact (I:P): Partial integrity impact.
Availability impact (A:P): Partial availability impact.

8.6

6.4

[email protected]

OS Trackers for CVE-2018-5809

vendor	priority	summary	link
`alpine`	high	CVE-2018-5809: 1 source package rows (libraw); 4 state rows across 2 repos (3.22-community, edge-community); fixed 0, open 4.	https://security.alpinelinux.org/vuln/CVE-2018-5809
`debian`	not yet assigned	CVE-2018-5809 not yet assigned priority: Debian including 1 source packages (libraw), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2018-5809
`redhat`	high	—	https://access.redhat.com/security/cve/CVE-2018-5809
`suse`	medium	CVE-2018-5809 severity moderate: SUSE including 5 source package names (libraw, libraw-devel, libraw-devel-static, libraw16, libraw9), 15 product×package rows across 6 product lines (SUSE Linux Enterprise Desktop 12 SP3, SUSE Linux Enterprise Desktop 12 SP4, … (6 product lines)): Known Not Affected 15.	https://www.suse.com/security/cve/CVE-2018-5809/
`ubuntu`	medium	CVE-2018-5809 medium priority: Ubuntu including 8 source packages (darktable, dcraw, …), 152 status rows across 19 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 74, DNE 37, needs-triage 23, not-affected 15, released 3.	https://ubuntu.com/security/CVE-2018-5809

Affected software / configurations for CVE-2018-5809

Vendor	Product	Version	Raw CPE
libraw	libraw	< 0.18.9	cpe:2.3:a:libraw:libraw::::::::

References for CVE-2018-5809

URL	Tags
https://github.com/LibRaw/LibRaw/blob/master/Changelog.txt	Release Notes
https://github.com/LibRaw/LibRaw/commit/fd6330292501983ac75fe4162275794b18445bd9	Patch
https://secuniaresearch.flexerasoftware.com/advisories/81800/	Third Party Advisory
https://secuniaresearch.flexerasoftware.com/secunia_research/2018-9/	Third Party Advisory

URL

CVE-2018-5809

Exploit prediction scoring system (EPSS) score for CVE-2018-5809

Common vulnerability scoring system (CVSS) metrics for CVE-2018-5809

Weakness enumeration for CVE-2018-5809

OS Trackers for CVE-2018-5809

Affected software / configurations for CVE-2018-5809

References for CVE-2018-5809