How severe is CVE-2020-9526?

CVE-2020-9526 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-9526 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9526?

CVE-2020-9526 affects Cs2-network P2p. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-9526?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-9526 published?

CVE-2020-9526 was published on 2020-08-10 and last updated on 2026-06-17.

CVE-2020-9526

CVE-2020-9526 is a medium-severity vulnerability in Cs2-network P2p with a CVSS 3.x base score of 5.9. 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-319.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-319
Affected product: Cs2-network P2p
Published: 2020-08-10
Last modified: 2026-06-17

Description

CS2 Network P2P through 3.x, as used in millions of Internet of Things devices, suffers from an information exposure flaw that exposes user session data to supernodes in the network, as demonstrated by passively eavesdropping on user video/audio streams, capturing credentials, and compromising devices.

Frequently asked questions

What is CVE-2020-9526?: CS2 Network P2P through 3.x, as used in millions of Internet of Things devices, suffers from an information exposure flaw that exposes user session data to supernodes in the network, as demonstrated by passively eavesdropping on user video/audio streams, capturing credentials, and compromising devices.
How severe is CVE-2020-9526?: CVE-2020-9526 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-9526 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9526?: CVE-2020-9526 affects Cs2-network P2p. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-9526?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-9526 published?: CVE-2020-9526 was published on 2020-08-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cs2-network:p2p:*:*:*:*:*:*:*:*

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