CVE-2022-28506

Exp

There is a heap-buffer-overflow in GIFLIB 5.2.1 function DumpScreen2RGB() in gif2rgb.c:298:45.

Published: 2022-04-25 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-28506 is rated High Exploit Risk (60.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.21%). 3 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.14% 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-2022-28506

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

Exploit prediction scoring system (EPSS) score for CVE-2022-28506

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 0.07% 1.21% +1.14%
2 2025-11-21 0.33% 0.07% -0.26%
3 2025-11-18 — 0.33% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-28506

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N 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:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N 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:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2022-28506

OS Trackers for CVE-2022-28506

vendor priority summary link
alpine medium CVE-2022-28506: 1 source package rows (giflib); 13 state rows across 8 repos (3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 12, open 1. https://security.alpinelinux.org/vuln/CVE-2022-28506
debian unimportant CVE-2022-28506 unimportant priority: Debian including 1 source packages (giflib), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 3, open 2. https://security-tracker.debian.org/tracker/CVE-2022-28506
redhat medium — https://access.redhat.com/security/cve/CVE-2022-28506
suse medium CVE-2022-28506 severity moderate: SUSE including 32 source package names (10.1.33-openjdk11-59.4:libgif7-5.2.2-150000.4.13.1, 10.1.33-openjdk17-59.4:libgif7-5.2.2-150000.4.13.1, …), 190 product×package rows across 80 product lines (Container bci/openjdk, Container bci/openjdk-devel, … (80 product lines)): Known Not Affected 100, Fixed 90. https://www.suse.com/security/cve/CVE-2022-28506/
ubuntu low CVE-2022-28506 low priority: Ubuntu including 1 source packages (giflib), 10 status rows across 10 suites (bionic, focal, impish, jammy, kinetic, lunar, mantic, noble, upstream, xenial): released 5, ignored 3, needed 1, not-affected 1. https://ubuntu.com/security/CVE-2022-28506

Affected software / configurations for CVE-2022-28506

Vendor Product Version Raw CPE
giflib_project giflib 5.2.1 cpe:2.3:a:giflib_project:giflib:5.2.1:*:*:*:*:*:*:*
fedoraproject fedora 35 cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
fedoraproject fedora 36 cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

References for CVE-2022-28506

cvelogic Threat Intelligence