Dell Enterprise SONiC OS, versions 3.3.0 and earlier, contains a sensitive information disclosure vulnerability.

published 2021-10-01 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-22929

cvss: 7.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits: 0; none known

Dell Enterprise SONiC OS, versions 3.3.0 and earlier, contains a sensitive information disclosure vulnerability. An authenticated malicious user with access to the system may use the TACACS\Radius credentials stored to read sensitive information and use it in further attacks.

Patch / fix

fixed in 1 links 1

Dell Enterprise SONiC OS 3.4.0

dell.com/support/kbdoc/en-us/000191690/DSA-2021-190-Dell-Enterprise… advisory

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.1	CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:P/I:N/A:N

Affected products

Dell Enterprise SONiC OS

Classification

Weakness

CWE-256 Plaintext Storage of a Password
CWE-522 Insufficiently Protected Credentials

References

dell.com /support/kbdoc/en-us/000191690/DSA-2021-190-Dell-Enterprise-SONiC-OS-Security-Update-for-an-information-disclo
patch, vendor-advisory

Sources

CVE List CVE-2021-36309
NVD CVE-2021-36309

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Summary