How severe is CVE-2017-5878?

CVE-2017-5878 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-5878 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-5878?

CVE-2017-5878 primarily affects Red5 Media Server. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-5878?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2017-5878 published?

CVE-2017-5878 was published on 2017-06-08 and last updated on 2026-06-17.

CVE-2017-5878

CVE-2017-5878 is a critical-severity vulnerability in Red5 Media Server with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Red5 Media Server
Published: 2017-06-08
Last modified: 2026-06-17

Description

The AMF unmarshallers in Red5 Media Server before 1.0.8 do not restrict the classes for which it performs deserialization, which allows remote attackers to execute arbitrary code via crafted serialized Java data.

Frequently asked questions

What is CVE-2017-5878?: The AMF unmarshallers in Red5 Media Server before 1.0.8 do not restrict the classes for which it performs deserialization, which allows remote attackers to execute arbitrary code via crafted serialized Java data.
How severe is CVE-2017-5878?: CVE-2017-5878 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-5878 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-5878?: CVE-2017-5878 primarily affects Red5 Media Server. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-5878?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2017-5878 published?: CVE-2017-5878 was published on 2017-06-08 and last updated on 2026-06-17.

References

Affected products (27)

cpe:2.3:o:red5:media_server:1.0.2:-:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.2:milestone1:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.3:*:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.4:*:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.5:*:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.6:*:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.7:-:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.7:milestone1:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.7:milestone2:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.7:milestone3:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.7:milestone4:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.7:milestone5:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.7:milestone6:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.7:milestone7:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.8:milestone1:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.8:milestone10:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.8:milestone11:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.8:milestone12:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.8:milestone13:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.8:milestone2:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.8:milestone3:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.8:milestone4:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.8:milestone5:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.8:milestone6:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.8:milestone7:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.8:milestone8:*:*:*:*:*:*
cpe:2.3:o:red5:media_server:1.0.8:milestone9:*:*:*:*:*:*

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