Is CVE-2006-1721 actively exploited?

CVE-2006-1721 has no public evidence of in-the-wild exploitation as of 2025-04-03.

What is the CVSS score for CVE-2006-1721?

CVE-2006-1721 has a CVSS score of 2.6 (UNKNOWN severity). Vector: AV:N/AC:H/Au:N/C:N/I:N/A:P.

How do I patch CVE-2006-1721?

Patch guidance is available from cyrus security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2006-1721.

CVE-2006-1721 - remediation guidance & executive summary

Q: Which products are affected by CVE-2006-1721?

5 products: cyrus sasl, cyrus sasl, cyrus sasl, cyrus sasl, cyrus sasl.

Description

digestmd5.c in the CMU Cyrus Simple Authentication and Security Layer (SASL) library 2.1.18, and possibly other versions before 2.1.21, allows remote unauthenticated attackers to cause a denial of service (segmentation fault) via malformed inputs in DIGEST-MD5 negotiation.

CVSS Metrics

Vector: AV:N/AC:H/Au:N/C:N/I:N/A:P
Access Vector: network
Access Cmplx: high
Auth: none
Confidentiality: none
Integrity: none
Availability: partial
Weaknesses: CWE-20 · Improper Input Validation

Metadata

Primary Vendor: CYRUS
Published: 4/11/2006
Last Modified: 4/3/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2006-1721

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary