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CVE-2020-18652

21
FAUCET Score

CVE-2020-18652 describes a buffer overflow vulnerability in exempi 2.5.0 and earlier, specifically within the WEBP_Support.cpp component. This flaw allows remote attackers to trigger a denial of service by enticing a user to open a specially crafted WebP file. The vulnerability carries a CVSS score of 6.5 (Medium), indicating a network-based attack with low complexity, requiring user interaction, and leading to high availability impact. There is currently no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.5.0CPE matchmatch criteria
cpe:2.3:a:exempi_project:exempi:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 61st percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: exempi-0:2.4.5-4.el8
View patch

Vendor Advisories (1)

redhatCVE-2020-18652Moderate

exempi: denial of service via opening of crafted webp file

Aug 22, 2023

References

gitlab.freedesktop.org / libopenraw/exempi/commit/acee2894ceb91616543927c2a6e45050c60f98f7
Patch
gitlab.freedesktop.org / libopenraw/exempi/issues/12
ExploitIssue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2023/09/msg00032.html