CVE-2021-20491: ibm spectrum_protect Out-of-bounds Write
CVSS: 4.4v3.0MediumModified
Published 16-04-2021Last modified 16-09-2024
Vulnerability summary
CVE-2021-20491 is a medium (CVSS 4.4) Out-of-bounds Write vulnerability in ibm spectrum_protect. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 16.4% of scored vulnerabilities.
CVSS score
4.4/10
010
Medium · v3.0 (CVE.org)EPSS score
0.26%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 16-04-2021PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
IBM Spectrum Protect Server 7.1 and 8.1 is subject to a stack-based buffer overflow caused by improper bounds checking during the parsing of commands. By issuing such a command with an improper parameter, an authorized administrator could overflow a buffer and cause the server to crash. IBM X-Force ID: 197792.
CVSS metrics
4 scores · 2 sources · 3 versionsMedium 4.4Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
Medium 4.4Preferred score · CVE.org (CNA)
CVSS:3.0/I:N/A:H/UI:N/C:N/S:U/AV:L/AC:L/PR:H/RL:O/E:U/RC:CSourcesAll 2 agree
- NVDNIST4.4MediumCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Low 2.1Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
0.26%
Chance of exploitation in the next 30 days
Percentile
16%
Versus all other CVEs
30-day change
0.00 pp
From 0.26% on 21-09-2026
21-09-202621-10-2026
EPSS score0.26%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ibm2 products
- spectrum_protect≥ 7.1.0.000, < 7.1.13 | ≥ 8.1.0.000, ≤ 8.1.10.100 | 8.1.11.000
- spectrum_protect_server8.1 | 7.1
1 vendor · 2 products