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CVE-2017-5878

32
FAUCET Score

CVE-2017-5878 describes a critical deserialization vulnerability in Red5 Media Server versions prior to 1.0.8. This flaw allows remote attackers to execute arbitrary code by sending specially crafted serialized Java data, as the AMF unmarshallers do not properly restrict deserialized classes. With a CVSS score of 9.8 (CRITICAL) and a FAUCET Risk Score of 94/100, this vulnerability is easily exploitable over the network with low complexity and no user interaction, leading to complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code like Metasploit or ExploitDB modules, the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.2CPE matchmatch criteria
cpe:2.3:o:red5:media_server:1.0.2:-:*:*:*:*:*:*
1.0.2CPE matchmatch criteria
cpe:2.3:o:red5:media_server:1.0.2:milestone1:*:*:*:*:*:*
1.0.3CPE matchmatch criteria
cpe:2.3:o:red5:media_server:1.0.3:*:*:*:*:*:*:*
1.0.4CPE matchmatch criteria
cpe:2.3:o:red5:media_server:1.0.4:*:*:*:*:*:*:*
1.0.5CPE matchmatch criteria
cpe:2.3:o:red5:media_server:1.0.5:*:*:*:*:*:*:*

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
2.72%
Probability of exploitation in next 30 days
EPSS Percentile
84.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0272 is in the 75th percentile among its peer group of 36,833 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 / mbechler/marshalsec/blob/master/marshalsec.pdf
Third Party Advisory
openwall.com / lists/oss-security/2017/05/22/2
Mailing ListThird Party Advisory