MEDIUMPOC
CVE-2011-0546
CWE-20Published: May 31, 2011· Updated: Jun 16, 2026
6.5
CVSS v3.1
Official Description
Symantec Backup Exec 11.0, 12.0, 12.5, 13.0, and 13.0 R2 does not validate identity information sent between the media server and the remote agent, which allows man-in-the-middle attackers to execute NDMP commands via unspecified vectors.
Technical Analysis
CVE-2011-0546 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A proof-of-concept (PoC) exploit exists for CVE-2011-0546. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorAdjacent
Attack ComplexityHigh
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:A/AC:H/Au:S/C:C/I:C/A:C
Affected Vendors & Products
symantec1 product(s)
backup exec
Source: NVD CPE · 4 total CPE entries
Exploit & PoC Resources
POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (10)
→
http://secunia.com/advisories/44698Vendor Advisory
→
http://secunia.com/advisories/44698Vendor Advisory
Quick Facts
CVE IDCVE-2011-0546
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-20
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedMay 31, 2011
Related CVEs (CWE-20)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2011-0546 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.