CVE-2018-5815 [Medium] | Integer Overflow in Libraw

CVE-2018-5815 is rated Moderate Risk (55.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.19%). EPSS rose +1.57% 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	0.62%	2.19%	+1.57%
2	2025-11-21	0.52%	0.62%	+0.10%
3	2025-11-18	—	0.52%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.62%

2.19%

+1.57%

2025-11-21

0.52%

0.62%

+0.10%

2025-11-18

—

0.52%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
6.5	3.0	MEDIUM	`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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: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: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.	2.8	3.6	[email protected]
7.1	2.0	HIGH	`AV:N/AC:M/Au:N/C:N/I:N/A:C` 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:N) No confidentiality impact. Integrity impact (I:N) No integrity impact. Availability impact (A:C) Complete availability impact.	8.6	6.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

6.5

3.0

MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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: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: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.

2.8

3.6

[email protected]

7.1

2.0

HIGH

AV:N/AC:M/Au:N/C:N/I:N/A:C 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:N): No confidentiality impact.
Integrity impact (I:N): No integrity impact.
Availability impact (A:C): Complete availability impact.

8.6

6.9

[email protected]

OS Trackers for CVE-2018-5815

vendor	priority	summary	link
`alpine`	medium	CVE-2018-5815: 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-2018-5815
`debian`	low	CVE-2018-5815 low 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-2018-5815
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2018-5815
`suse`	low	CVE-2018-5815 severity low: SUSE including 25 source package names (libraw, libraw-devel, …), 46 product×package rows across 25 product lines (SUSE Linux Enterprise Desktop 12 SP3, SUSE Linux Enterprise Module for Desktop Applications 15 SP4, … (25 product lines)): Fixed 38, Known Not Affected 8.	https://www.suse.com/security/cve/CVE-2018-5815/
`ubuntu`	medium	CVE-2018-5815 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 38, needs-triage 23, not-affected 15, released 2.	https://ubuntu.com/security/CVE-2018-5815

Affected software / configurations for CVE-2018-5815

Vendor	Product	Version	Raw CPE
libraw	libraw	< 0.18.12	cpe:2.3:a:libraw:libraw::::::::
canonical	ubuntu_linux	14.04	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
canonical	ubuntu_linux	16.04	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
canonical	ubuntu_linux	18.04	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::

References for CVE-2018-5815

URL	Tags
https://github.com/LibRaw/LibRaw/blob/master/Changelog.txt	Third Party Advisory
https://github.com/LibRaw/LibRaw/commit/1334647862b0c90b2e8cb2f668e66627d9517b17	Patch Third Party Advisory
https://secuniaresearch.flexerasoftware.com/advisories/83507/	Permissions Required Third Party Advisory
https://secuniaresearch.flexerasoftware.com/secunia_research/2018-14/	Third Party Advisory
https://usn.ubuntu.com/3838-1/	Third Party Advisory

URL

CVE-2018-5815

Exploit prediction scoring system (EPSS) score for CVE-2018-5815

Common vulnerability scoring system (CVSS) metrics for CVE-2018-5815

Weakness enumeration for CVE-2018-5815

OS Trackers for CVE-2018-5815

Affected software / configurations for CVE-2018-5815

References for CVE-2018-5815