CVE-2011-0539

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.81% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 76.7% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-16.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2011-02-10 17:00Z15 YR AGO

Last updated

2026-05-29 20:34Z3 MO AGO

Reserved

2011-01-20

Assigning CNA

redhat

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weaknesses

• CWE-457Use of Uninitialized VariableVariant
• CWE-264

Data version

5.2

Document digest

83b1d35d8a77ce12ea037af1f89bd8ae1e1ce3dd2095b45b3b9ed6411d38bc4e

• www.openwall.com[oss-security] 20110204 Re: [vendor-sec] OpenSSH security advisory: legacy certificate signing in 5.6/5.7http://www.openwall.com/lists/oss-security/2011/02/04/2mailing-listx_refsource_MLIST
• www.securitytracker.com1025028http://www.securitytracker.com/id?1025028vdb-entryx_refsource_SECTRACK
• www.securityfocus.com46155http://www.securityfocus.com/bid/46155vdb-entryx_refsource_BID
• kb.juniper.nethttp://kb.juniper.net/InfoCenter/index?page=content&id=JSA10673x_refsource_CONFIRM
• www.vupen.comADV-2011-0284http://www.vupen.com/english/advisories/2011/0284vdb-entryx_refsource_VUPEN
• secunia.com43181http://secunia.com/advisories/43181third-party-advisoryx_refsource_SECUNIA
• h20000.www2.hp.comHPSBMA02658http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02794777vendor-advisoryx_refsource_HP
• secunia.com44269http://secunia.com/advisories/44269third-party-advisoryx_refsource_SECUNIA
• www.openssh.comhttp://www.openssh.com/txt/legacy-cert.advx_refsource_CONFIRM
• exchange.xforce.ibmcloud.comopenssh-certificate-info-disclosure(65163)https://exchange.xforce.ibmcloud.com/vulnerabilities/65163vdb-entryx_refsource_XF