CVE-2006-2369
CVE-2006-2369 is a high-severity vulnerability in Vnc Realvnc with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 92% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-287.
Key facts
- Severity: High (CVSS 2.0 base score 7.5)
- EPSS exploit prediction: 92% (100th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-287
- Affected product: Vnc Realvnc
- Published:
- Last modified:
Description
RealVNC 4.1.1, and other products that use RealVNC such as AdderLink IP and Cisco CallManager, allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as "Type 1 - None", which is accepted even if it is not offered by the server, as originally demonstrated using a long password.
Frequently asked questions
- What is CVE-2006-2369?
- RealVNC 4.1.1, and other products that use RealVNC such as AdderLink IP and Cisco CallManager, allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as "Type 1 - None", which is accepted even if it is not offered by the server, as originally demonstrated using a long password.
- How severe is CVE-2006-2369?
- CVE-2006-2369 has a CVSS 2.0 base score of 7.5, rated high severity.
- Is CVE-2006-2369 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 92% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2006-2369?
- CVE-2006-2369 affects Vnc Realvnc. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2006-2369?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2006-2369 published?
- CVE-2006-2369 was published on 2006-05-15 and last updated on 2026-06-16.
References
- http://marc.info/?l=full-disclosure&m=114768344111131&w=2
- http://marc.info/?l=vnc-list&m=114755444130188&w=2
- http://seclists.org/fulldisclosure/2022/May/29
- http://secunia.com/advisories/20107
- http://secunia.com/advisories/20109
- http://secunia.com/advisories/20789
- http://securityreason.com/securityalert/8355
- http://securitytracker.com/id?1016083
- http://www.cisco.com/warp/public/707/cisco-sr-20060622-cmm.shtml
- http://www.intelliadmin.com/blog/2006/05/security-flaw-in-realvnc-411.html
- http://www.intelliadmin.com/blog/2006/05/vnc-flaw-proof-of-concept.html
- http://www.kb.cert.org/vuls/id/117929
- http://www.osvdb.org/25479
- http://www.realvnc.com/products/free/4.1/release-notes.html
- http://www.securityfocus.com/archive/1/433994/100/0/threaded
- http://www.securityfocus.com/archive/1/434015/100/0/threaded
- http://www.securityfocus.com/archive/1/434117/100/0/threaded
- http://www.securityfocus.com/archive/1/434518/100/0/threaded
- http://www.securityfocus.com/archive/1/434560/100/0/threaded
- http://www.securityfocus.com/archive/1/438175/100/0/threaded
- http://www.securityfocus.com/archive/1/438368/100/0/threaded
- http://www.securityfocus.com/bid/17978
- http://www.vupen.com/english/advisories/2006/1790
- http://www.vupen.com/english/advisories/2006/1821
- http://www.vupen.com/english/advisories/2006/2492
- https://exchange.xforce.ibmcloud.com/vulnerabilities/26445
- http://www.openwall.com/lists/oss-security/2024/08/02/8
Affected products (1)
- cpe:2.3:a:vnc:realvnc:4.1.1:*:*:*:*:*:*:*
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