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CVE-2022-28940

25
FAUCET Score

CVE-2022-28940 describes an unauthorized access vulnerability in H3C MagicR100 <=V100R005, specifically within the /Ajax/ajaxget interface. This flaw allows an unauthenticated attacker to send a large volume of data via ajaxmsg, leading to a Denial of Service (DoS) attack. Rated 7.5 HIGH on the CVSS scale, this vulnerability is easily exploitable over the network with low attack complexity and no user interaction required. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= v100r005CPE matchmatch criteria
cpe:2.3:o:h3c:magic_r100_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.17%
Probability of exploitation in next 30 days
EPSS Percentile
64.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0117 is in the 42nd percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

github.com / zhefox/0day/blob/main/%E6%96%B0%E5%8D%8E%E4%B8%89magicR100%E5%AD%98%E5%9C%A8DOS%E6%94%BB%E5%87%BB%E6%BC%8F%E6%B4%9E%E5%88%86%E6%9E%90.md
ExploitThird Party Advisory