CVE-2021-3597: netapp active_iq_unified_manager
Vulnerability summary
CVE-2021-3597 is a medium (CVSS 5.9) vulnerability in netapp active_iq_unified_manager. EPSS estimates a 1.16% chance of exploitation in the next 30 days, higher than 67.2% of scored vulnerabilities.
Not severe (CVSS 5.9, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 5Timeline
- 24-05-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
A flaw was found in undertow. The HTTP2SourceChannel fails to write the final frame under some circumstances, resulting in a denial of service. The highest threat from this vulnerability is availability. This flaw affects Undertow versions prior to 2.0.35.SP1, prior to 2.2.6.SP1, prior to 2.2.7.SP1, prior to 2.0.36.SP1, prior to 2.2.9.Final and prior to 2.0.39.Final.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · MavenEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.16%
Chance of exploitation in the next 30 days
Percentile
67%
Versus all other CVEs
30-day change
Increase +0.02 pp
From 1.14% 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.
Redhat5 products
- fuse1.0
- jboss_enterprise_application_platformna | 7.3 | 7.4
- openshift_application_runtimesna
- single_sign-onna
- undertow< 2.0.35 | ≥ 2.2.0, < 2.2.6 | 2.0.35 | 2.0.36 | 2.0.39 | 2.2.6 | 2.2.7 | 2.2.9
Netapp3 products
Debian1 product
- undertow< 2.2.10-1
Io.undertow1 product
- undertow-core≥ 2.1.0, < 2.2.9.Final | < 2.0.39.Final
Ubuntu1 product
- undertowAll versions (No fix recorded)
5 vendors · 11 products
References
8 links- bugzilla.redhat.com/show_bug.cgi?id=1970930X Refsource MISCREPORTWEBIssue TrackingThird Party Advisory
