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CVE-2022-45460

32
FAUCET Score

CVE-2022-45460 is a critical stack-based buffer overflow vulnerability affecting multiple Xiongmai NVR devices, including specific MBD6304T and NBD6808T-PL firmware versions. An unauthenticated, remote attacker can exploit this by sending a crafted HTTP request with a long URI, leading to a web server crash and system reboot, or potentially arbitrary code execution. With a CVSS score of 9.8 (CRITICAL), this vulnerability poses a significant risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While no public exploit code (Metasploit, Nuclei, ExploitDB) is currently available, there has been some community discussion indicating recent interest in this CVE, though it is not listed on CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
4.02.r11.c7431119.12001.130000.00000CPE matchmatch criteria
cpe:2.3:o:xiongmaitech:nbd6808t-pl_firmware:4.02.r11.c7431119.12001.130000.00000:*:*:*:*:*:*:*
4.02.r11.00000117.10001.131900.00000CPE matchmatch criteria
cpe:2.3:o:xiongmaitech:mbd6304t_firmware:4.02.r11.00000117.10001.131900.00000:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.67%
Probability of exploitation in next 30 days
EPSS Percentile
92.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0567 is in the 87th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / tothi/pwn-hisilicon-dvr/blob/master/pwn_hisilicon_dvr.py
ExploitThird Party Advisory
vulncheck.com / advisories/xiongmai-uri-overflow
ExploitThird Party Advisory