CVE-2020-24870

Libraw before 0.20.1 has a stack buffer overflow via LibRaw::identify_process_dng_fields in identify.cpp.

Published: 2021-06-02 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-24870 is rated Moderate Risk (61.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.62%). EPSS rose +1.06% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-24870

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.57% 1.62% +1.06%
2 2025-12-10 0.18% 0.57% +0.39%
3 2025-11-21 — 0.18% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-24870

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/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]

Weakness enumeration for CVE-2020-24870

OS Trackers for CVE-2020-24870

vendor priority summary link
alpine high CVE-2020-24870: 1 source package rows (libraw); 10 state rows across 2 repos (3.22-community, edge-community); fixed 0, open 10. https://security.alpinelinux.org/vuln/CVE-2020-24870
debian not yet assigned CVE-2020-24870 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-2020-24870
gentoo low CVE-2020-24870: 1 GLSA(s) (202208-07), 1 atom(s) (media-libs/libraw); latest impact low. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2020-24870
redhat medium — https://access.redhat.com/security/cve/CVE-2020-24870
ubuntu medium CVE-2020-24870 medium priority: Ubuntu including 8 source packages (darktable, dcraw, …), 128 status rows across 16 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 57, DNE 34, needs-triage 23, not-affected 14. https://ubuntu.com/security/CVE-2020-24870

Affected software / configurations for CVE-2020-24870

Vendor Product Version Raw CPE
libraw libraw < 0.20.1 cpe:2.3:a:libraw:libraw:*:*:*:*:*:*:*:*

References for CVE-2020-24870

cvelogic Threat Intelligence