HOMEVULNERABILITIESCVE-2022-25898
CRITICAL

CVE-2022-25898

CWE-347Published: July 1, 2022· Updated: Jun 22, 2026

9.8
CVSS v3.1

Official Description

The package jsrsasign before 10.5.25 are vulnerable to Improper Verification of Cryptographic Signature when JWS or JWT signature with non Base64URL encoding special characters or number escaped characters may be validated as valid by mistake. Workaround: Validate JWS or JWT signature if it has Base64URL and dot safe string before executing JWS.verify() or JWS.verifyJWT() method.

NVD Source

Technical Analysis

CVE-2022-25898 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

kjur1 product(s)
jsrsasign
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/kjur/jsrsasign/commit/4536a6e9e8bcf1a644ab7c07ed96e453347dae41
PATCHhttps://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-2935898
PATCHhttps://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBKJUR-2935897
PATCHhttps://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2935896
PATCHhttps://snyk.io/vuln/SNYK-JS-JSRSASIGN-2869122
PATCHhttps://github.com/kjur/jsrsasign/commit/4536a6e9e8bcf1a644ab7c07ed96e453347dae41
PATCHhttps://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-2935898
PATCHhttps://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBKJUR-2935897
PATCHhttps://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2935896
PATCHhttps://snyk.io/vuln/SNYK-JS-JSRSASIGN-2869122
ADVISORYhttps://github.com/kjur/jsrsasign/releases/tag/10.5.25
ADVISORYhttps://github.com/kjur/jsrsasign/releases/tag/10.5.25

All References (12)

→
https://github.com/kjur/jsrsasign/commit/4536a6e9e8bcf1a644ab7c07ed96e453347dae41Patch · Third Party Advisory
→
https://github.com/kjur/jsrsasign/releases/tag/10.5.25Release Notes · Third Party Advisory
→
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-2935898Exploit · Patch · Third Party Advisory
→
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBKJUR-2935897Exploit · Patch · Third Party Advisory
→
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2935896Exploit · Patch · Third Party Advisory
→
https://snyk.io/vuln/SNYK-JS-JSRSASIGN-2869122Exploit · Patch · Third Party Advisory
→
https://github.com/kjur/jsrsasign/commit/4536a6e9e8bcf1a644ab7c07ed96e453347dae41Patch · Third Party Advisory
→
https://github.com/kjur/jsrsasign/releases/tag/10.5.25Release Notes · Third Party Advisory
→
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-2935898Exploit · Patch · Third Party Advisory
→
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBKJUR-2935897Exploit · Patch · Third Party Advisory
→
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2935896Exploit · Patch · Third Party Advisory
→
https://snyk.io/vuln/SNYK-JS-JSRSASIGN-2869122Exploit · Patch · Third Party Advisory

Quick Facts

CVE IDCVE-2022-25898
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-347
CISA KEVNo
Affected1 vendor(s)
PublishedJul 1, 2022

Related CVEs (CWE-347)

CVE-2026-56451
10.0
CVE-2026-48558
KEV10.0
CVE-2024-32962
10.0
CVE-2026-44748
9.9
CVE-2024-47832
9.8
CVE-2023-28801
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-25898 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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