CVE-2021-33207: softwareag mashzone_nextgen Deserialization of Untrusted Data
Vulnerability summary
CVE-2021-33207 is a critical (CVSS 9.8) Deserialization of Untrusted Data vulnerability in softwareag mashzone_nextgen. EPSS estimates a 1.63% chance of exploitation in the next 30 days, higher than 76.1% of scored vulnerabilities.
Severe, CVSS 9.8 (NVD); no exploitation reported by the 5 checked sources; EPSS 2% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Timeline
- 05-04-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
The HTTP client in MashZone NextGen through 10.7 GA deserializes untrusted data when it gets an HTTP response with a 570 status code.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
1.63%
Chance of exploitation in the next 30 days
Percentile
76%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.63% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Softwareag1 product
- mashzone_nextgen≤ 10.7
1 vendor · 1 product
References
2 links- github.com/blackarrowsec/advisories/tree/master/2021/CVE-2021-33207X Refsource MISCThird Party Advisory