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CVE-2025-8837

30
FAUCET Score

CVE-2025-8837 is a high-severity use-after-free vulnerability affecting JasPer versions up to 4.2.5, specifically within the JPEG2000 File Handler component. This flaw, located in the jpc_dec_dump function of src/libjasper/jpc/jpc_dec.c, allows for local privilege escalation with high impact on confidentiality, integrity, and availability. While a public exploit has been disclosed, there is no evidence of active exploitation, nor are there readily available exploit modules in common frameworks like Metasploit or Nuclei. Community discussion and media coverage for this CVE are currently minimal.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.2.5CPE matchmatch criteria
cpe:2.3:a:jasper_project:jasper:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

1.9LOW

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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

Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
LOW
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.22%
Probability of exploitation in next 30 days
EPSS Percentile
12.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0022 is in the 43rd percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 20427-17084Fixed in: 4.2.1-3
microsoftpatch availablevia msrc
Product: 19910-17086Fixed in: 2.0.32-5
microsoftpatch availablevia msrc
Product: 20400-17086Fixed in: 2.0.32-5
microsoftpatch availablevia msrc
Product: azl3 jasper 4.2.1-2 on Azure Linux 3.0Fixed in: 4.2.1-3
microsoftpatch availablevia msrc
Product: azl3 jasper 4.2.1-3 on Azure Linux 3.0Fixed in: 4.2.1-3
microsoftpatch availablevia msrc
Product: cbl2 jasper 2.0.32-4 on CBL Mariner 2.0Fixed in: 2.0.32-5
microsoftpatch availablevia msrc
Product: 17754-17084Fixed in: 4.2.1-3
microsoftpatch availablevia msrc
Product: cbl2 jasper 2.0.32-5 on CBL Mariner 2.0Fixed in: 2.0.32-5

Vendor Advisories (1)

microsoft2025-Aug/CVE-2025-8837

JasPer JPEG2000 File jpc_dec.c jpc_dec_dump use after free

Aug 12, 2025

References

drive.google.com / file/d/17Ic_DDOlH7mMT7IbTN2Bmo6SrujIUh24/view
Exploit
github.com / jasper-software/jasper/commit/8308060d3fbc1da10353ac8a95c8ea60eba9c25a
Patch
github.com / jasper-software/jasper/issues/402
ExploitIssue TrackingVendor Advisory
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
ExploitThird Party AdvisoryVDB Entry
vuldb.com
ExploitThird Party AdvisoryVDB Entry