CVE-2021-21995
published 2021-07-13CVE-2021-21995: OpenSLP as used in ESXi has a denial-of-service vulnerability due a heap out-of-bounds read issue. A malicious actor with network access to port 427 on ESXi…
PriorityP434high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.96%
57.6th percentile
OpenSLP as used in ESXi has a denial-of-service vulnerability due a heap out-of-bounds read issue. A malicious actor with network access to port 427 on ESXi may be able to trigger a heap out-of-bounds read in OpenSLP service resulting in a denial-of-service condition.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| vmware | cloud_foundation | >= 3.0 < 3.10.2 | 3.10.2 |
| vmware | cloud_foundation | >= 4.0 < 4.3 | 4.3 |
| vmware | esxi | — | — |
| vmware | esxi | — | — |
| vmware | esxi | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-x2m6-68vv-69j3: OpenSLP as used in ESXi has a denial-of-service vulnerability due a heap out-of-bounds read issue
ghsa_unreviewed·2022-05-24
CVE-2021-21995 [HIGH] CWE-125 GHSA-x2m6-68vv-69j3: OpenSLP as used in ESXi has a denial-of-service vulnerability due a heap out-of-bounds read issue
OpenSLP as used in ESXi has a denial-of-service vulnerability due a heap out-of-bounds read issue. A malicious actor with network access to port 427 on ESXi may be able to trigger a heap out-of-bounds read in OpenSLP service resulting in a denial-of-service condition.
VMware
VMware ESXi updates address authentication and denial of service vulnerabilities (CVE-2021-21994, CVE-2021-21995)
vendor_vmware·2021-07-13·CVSS 9.8
CVE-2021-21994 [CRITICAL] VMware ESXi updates address authentication and denial of service vulnerabilities (CVE-2021-21994, CVE-2021-21995)
VMSA-2021-0014: VMware ESXi updates address authentication and denial of service vulnerabilities (CVE-2021-21994, CVE-2021-21995)
SFCB (Small Footprint CIM Broker) as used in ESXi has an authentication bypass vulnerability.VMware has evaluated the severity of this issue to be in the Important severity range with a maximum CVSSv3 base score of 7.0.
CVEs: CVE-2021-21994, CVE-2021-21995
Affected products: VMware Cloud Foundation, VMware ESXi, VMware vSphere
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-07-13
Published