CVE-2020-27814

Exp

A heap-buffer overflow was found in the way openjpeg2 handled certain PNG format files. An attacker could use this flaw to cause an application crash or in some cases execute arbitrary code with the permission of the user running such an application.

Published: 2021-01-26 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-27814 is rated High Exploit Risk (74.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.02%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.09% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2020-27814

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-27814

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 0.92% 2.02% +1.09%
2 2026-05-30 0.19% 0.92% +0.73%
3 2025-11-21 — 0.19% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-27814

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
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.
 1.8 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-2020-27814

OS Trackers for CVE-2020-27814

vendor priority summary link
alpine high CVE-2020-27814: 1 source package rows (openjpeg); 55 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 45. https://security.alpinelinux.org/vuln/CVE-2020-27814
debian not yet assigned CVE-2020-27814 not yet assigned priority: Debian including 1 source packages (openjpeg2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2020-27814
gentoo normal CVE-2020-27814: 1 GLSA(s) (202101-29), 1 atom(s) (media-libs/openjpeg); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2020-27814
redhat medium — https://access.redhat.com/security/cve/CVE-2020-27814
suse medium CVE-2020-27814 severity moderate: SUSE including 32 source package names (0.3.2-1.2:libopenjp2-7-2.3.0-150000.3.8.1, 0.3.32-3.4:libopenjp2-7-2.3.0-150000.3.8.1, …), 284 product×package rows across 73 product lines (Container containers/lmcache-vllm-openai, Container containers/open-webui, … (73 product lines)): Fixed 122, Known Not Affected 98, Will Not Fix 64. https://www.suse.com/security/cve/CVE-2020-27814/
ubuntu medium CVE-2020-27814 medium priority: Ubuntu including 7 source packages (blender, ghostscript, …), 112 status rows across 16 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 53, DNE 25, released 17, ignored 8, needs-triage 5, needed 4. https://ubuntu.com/security/CVE-2020-27814

Affected software / configurations for CVE-2020-27814

Vendor Product Version Raw CPE
uclouvain openjpeg <= 1.5.1 cpe:2.3:a:uclouvain:openjpeg:*:*:*:*:*:*:*:*
uclouvain openjpeg >= 2.0.0, < 2.4.0 cpe:2.3:a:uclouvain:openjpeg:*:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

References for CVE-2020-27814

cvelogic Threat Intelligence