CVE-2023-2804
mediumpriority · track · 26EPSS 0.012 · 68 %ileDEEUNLRUUSEPSS · scored 2026-10-27
A heap-based buffer overflow issue was discovered in libjpeg-turbo in h2v2_merged_upsample_internal() function of jdmrgext.c file. The vulnerability can only be exploited with 12-bit data precision for which the range of the sample data type exceeds the valid sample range, hence, an attacker could craft a 12-bit lossless JPEG image that contains out-of-range 12-bit samples. An application attempting to decompress such image using merged upsampling would lead to segmentation fault or buffer overflows, causing an application to crash.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedWindows Server 2022, 23H2 Edition (Server Core installation)msrc_csaf
10.0.25398.2149:Security Update:https://support.microsoft.com/help/5075897
https://support.microsoft.com/help/5075897
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (75)
Products and version ranges known to be affected.
- Microsoft Exchange Server 2016 Cumulative Update 23all versionscert_bundDEcpe:/a:microsoft:exchange:server_2016_cumulative_update_23
- Microsoft Exchange Server 2019 Cumulative Update 14all versionscert_bundDEcpe:/a:microsoft:exchange:server_2019_cumulative_update_14
- Microsoft Exchange Server 2019 Cumulative Update 15all versionscert_bundDEcpe:/a:microsoft:exchange:server_2019_cumulative_update_15
- Microsoft Windows Server 2022 23H2 Editionall versionscert_bundDEcpe:/o:microsoft:windows_server_2022:23h2_edition
advisories (3)
Vendor and ecosystem advisories describing this.
- NCSC-2026-0053Kwetsbaarheden verholpen in Microsoft WindowsNL2026-02-10csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in Windows.
- WID-SEC-W-2026-0369Microsoft Windows: Mehrere SchwachstellenDeutsch2026-02-10csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Microsoft Windows-Produkten ausnutzen, um Administratorrechte zu erlangen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, Spoofing-Angriffe zu starten, Daten zu manipulieren, vertrauliche Informationen offenzulegen und einen Denial-of-Service-Zustand zu verursachen.
- msrc_CVE-2023-2804Red Hat, Inc. CVE-2023-2804: Heap Based Overflow libjpeg-turbo2026-02-10csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (19)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2023-2804cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2208447cnnvd
- https://cxsecurity.com/cveshow/CVE-2023-2804/cnnvd
- https://github.com/libjpeg-turbo/libjpeg-turbo/commit/9f756bc67a84d4566bf74a0c2432aa55da404021cnnvd
- https://github.com/libjpeg-turbo/libjpeg-turbo/issues/668#issuecomment-1492586118cnnvd
- https://github.com/libjpeg-turbo/libjpeg-turbo/issues/675cnnvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-2804cnnvd
- https://access.redhat.com/security/cve/CVE-2023-2804enisa_euvd
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