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NVD / CVE Program· CNA VulDB

CVE-2025-8835: JasPer Image Color Space Conversion jas_image.c jas_image_chclrspc null pointer dereference

Noroxi assessment

Priority: Monitor (action score 7/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.22% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: azl3 jasper 4.2.1-2 on Azure Linux 3.0 4.2.1-3; azl3 jasper 4.2.1-3 on Azure Linux 3.0 4.2.1-3.
  • Severity is disputed: the assigning authority (CNA) scores it 4.8, NVD 1.9.

Low priority for now. Upgrade to azl3 jasper 4.2.1-2 on Azure Linux 3.0 4.2.1-3; azl3 jasper 4.2.1-3 on Azure Linux 3.0 4.2.1-3 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A vulnerability was found in JasPer up to 4.2.5. Affected by this vulnerability is the function jas_image_chclrspc of the file src/libjasper/base/jas_image.c of the component Image Color Space Conversion Handler. The manipulation leads to null pointer dereference. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. The identifier of the patch is bb7d62bd0a2a8e0e1fdb4d603f3305f955158c52. It is recommended to apply a patch to fix this issue.

LowCVSS 1.9 · v4.0—No exploit Fix available
Published
Aug 11, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 13th percentile

Report tools

JSON

Action score

7

Monitor

Low priority for now.

CVSS
7 / 40 · 1.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · VulDB
4.8
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
jasper projectjasper

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • jasper project jasperup to 4.2.5 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulDB). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a JasPer

    • 4.2.0, 4.2.1, 4.2.2, 4.2.3, 4.2.4, 4.2.5affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
openSUSE:Leap 15.6jasperbefore 4.2.8-150600.4.5.14.2.8-150600.4.5.1
openSUSE:Leap 16.0jasperbefore 4.2.8-160000.1.14.2.8-160000.1.1
openSUSE:Tumbleweedjasperbefore 4.2.8-2.14.2.8-2.1
SUSE:Linux Enterprise Module for Basesystem 15 SP6jasperbefore 2.0.14-150000.3.37.12.0.14-150000.3.37.1
SUSE:Linux Enterprise Module for Desktop Applications 15 SP6jasperbefore 4.2.8-150600.4.5.14.2.8-150600.4.5.1
SUSE:Linux Enterprise Server 16.0jasperbefore 4.2.8-160000.1.14.2.8-160000.1.1
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5jasperbefore 1.900.14-195.43.11.900.14-195.43.1

Same product

jasper project: all records

Other highest-scoring records for the same primary product.

  • CVE-2008-3520Multiple integer overflows in JasPer 1.900.1 might allow context-dependent attackers to have an unknown impact via a crafted image file, rel
    38Monitor
  • CVE-2015-8751Integer overflow in the jas_matrix_create function in JasPer allows context-dependent attackers to have unspecified impact via a crafted JPE
    36Monitor
  • CVE-2018-19541An issue was discovered in JasPer 1.900.8, 1.900.9, 1.900.10, 1.900.11, 1.900.12, 1.900.13, 1.900.14, 1.900.15, 1.900.16, 1.900.17, 1.900.18
    36Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2022-2963Oct 14, 2022 · A vulnerability found in jasper.
    31Monitor
  • ← EarlierCVE-2023-51257Jan 15, 2024 · An invalid memory write issue in Jasper-Software Jasper v.4.1.1 and before allows a local attacker to execute arbitrary code.
    31Monitor
  • Later →CVE-2025-8836Aug 11, 2025 · JasPer JPEG2000 Encoder jpc_enc.c jpc_floorlog2 assertion
    7Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
azl3 jasper 4.2.1-2 on Azure Linux 3.04.2.1-3 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 jasper 4.2.1-3 on Azure Linux 3.04.2.1-3 · CBL-Mariner ReleasesMicrosoft (MSRC)
opensuse:jasper4.2.8-150600.4.5.1 · openSUSE:Leap 15.6Package registry (OSV)
suse:jasper2.0.14-150000.3.37.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)
suse:jasper4.2.8-150600.4.5.1 · SUSE:Linux Enterprise Module for Desktop Applications 15 SP6Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
X

Weakness class (CWE)

CWE-404 · Improper Resource Shutdown or Release

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

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References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records