CVE-2020-4956 json
IBM Spectrum Protect Operations Center 7.1 and 8.1 is vulnerable to a denial of service, caused by a RPC that allows certain cache values t…
published 5y ago modified 4mo ago also EUVD-2020-26203
- cvss
- 4.8
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 40%
- public exploits
- 0
- none known
Summary
IBM Spectrum Protect Operations Center 7.1 and 8.1 is vulnerable to a denial of service, caused by a RPC that allows certain cache values to be set and dumped to a file. By setting a grossly large cache value and dumping that cached value to a file multiple times, a remote attacker could exploit this vulnerability to cause the consumption of all memory resources. IBM X-Force ID: 192156.
Patch / fix
- ibm spectrum_protect_operations_center 7.1.13.000, 8.1.10.200
- ibm.com/support/pages/node/6404966 advisory
Is CVE-2020-4956 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 4.8 | CVSS:3.0/C:N/I:N/PR:L/AV:A/UI:N/A:H/S:U/AC:H/E:U/RL:O/RC:C |
| NVD | 3.1 | 4.8 | CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.0 | 4.8 | CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 2.3 | AV:A/AC:M/Au:S/C:N/I:N/A:P |
Affected products
- IBM Spectrum Protect Operations Center
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
ibm.com
/support/pages/node/6404966
patch, vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/192156
vdb-entry, vendor-advisory
Sources
- CVE List CVE-2020-4956
- NVD CVE-2020-4956
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.