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    CVE-2025-8836

    A vulnerability was determined in JasPer up to 4.2.5. Affected by this issue is the function jpc_floorlog2 of the file src/libjasper/jpc/jpc_enc.c of the component JPEG2000 Encoder. The manipulation leads to reachable assertion. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. The patch is identified as 79185d32d7a444abae441935b20ae4676b3513d4. It is recommended to apply a patch to fix this issue.

    Published:Aug 11, 2025
    Last Modified:Sep 16, 2025
    EPS:Aug 11, 2025
    EPSS Score:0.00022
    CVSS Score:3.3

    Affected Products

    Vendor
    Jasper Project
    Product
    Jasper

    Exploits

    https://drive.google.com/file/d/1pPgndhHh2z0lk99Wt31W-XIW3XWt8FB3/view?usp=drive_linkhttps://github.com/jasper-software/jasper/issues/401https://vuldb.com/?submit.622409https://github.com/jasper-software/jasper/issues/401

    Common Weakness Enumeration

    CWE-617 Reachable Assertion

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2023-51257 (CVSS 7.8) — An invalid memory write issue in Jasper-Software Jasper v.4.1.1 and before allows a local attacker to execute …
    CVE-2022-40755 (CVSS 5.5) — JasPer 3.0.6 allows denial of service via a reachable assertion in the function inttobits in libjasper/base/ja…
    CVE-2022-2963 (CVSS 7.5) — A vulnerability found in jasper. This security vulnerability happens because of a memory leak bug in function …
    CVE-2021-27845 (CVSS 5.5) — A Divide-by-zero vulnerability exists in JasPer Image Coding Toolkit 2.0 in jasper/src/libjasper/jpc/jpc_enc.c…
    CVE-2021-3443 (CVSS 5.5) — A NULL pointer dereference flaw was found in the way Jasper versions before 2.0.27 handled component reference…
    CVE-2021-3467 (CVSS 5.5) — A NULL pointer dereference flaw was found in the way Jasper versions before 2.0.26 handled component reference…
    CVE-2021-26926 (CVSS 7.1) — A flaw was found in jasper before 2.0.25. An out of bounds read issue was found in jp2_decode function whic ma…
    CVE-2021-26927 (CVSS 5.5) — A flaw was found in jasper before 2.0.25. A null pointer dereference in jp2_decode in jp2_dec.c may lead to pr…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High