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CVE-2012-5723

21
FAUCET Score

CVE-2012-5723 describes a denial-of-service vulnerability affecting Cisco ASR 1000 series devices running software versions prior to 3.8S, specifically when BDI routing is enabled. Remote attackers can trigger a device reload by sending crafted broadcast or multicast ICMP packets with fragmentation. The vulnerability has a CVSS score of 6.1, indicating a medium severity, with an adjacent network attack vector and low attack complexity, leading to a complete loss of availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.7s\(.1\)CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
3.6.0sCPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:3.6.0s:*:*:*:*:*:*:*
3.6.1sCPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:3.6.1s:*:*:*:*:*:*:*
3.6.2sCPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:3.6.2s:*:*:*:*:*:*:*
3.6s\(.0\)CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:3.6s\(.0\):*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.1MEDIUM

AV:A/AC:L/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
6.5
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.72%
Probability of exploitation in next 30 days
EPSS Percentile
50.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0072 is in the 79th percentile among its peer group of 1,802 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisco.com / c/en/us/td/docs/routers/asr1000/release/notes/asr1k_rn_rel_notes/asr1k_caveats_38s.html