How severe is CVE-2022-47930?

CVE-2022-47930 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2022-47930 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-47930?

CVE-2022-47930 affects Iofinnet Tss-lib. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-47930?

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

When was CVE-2022-47930 published?

CVE-2022-47930 was published on 2023-04-21 and last updated on 2026-06-17.

CVE-2022-47930

CVE-2022-47930 is a medium-severity vulnerability in Iofinnet Tss-lib with a CVSS 3.x base score of 6.8. 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-294.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-294
Affected product: Iofinnet Tss-lib
Published: 2023-04-21
Last modified: 2026-06-17

Description

An issue was discovered in IO FinNet tss-lib before 2.0.0. The parameter ssid for defining a session id is not used through the MPC implementation, which makes replaying and spoofing of messages easier. In particular, the Schnorr proof of knowledge implemented in sch.go does not utilize a session id, context, or random nonce in the generation of the challenge. This could allow a malicious user or an eavesdropper to replay a valid proof sent in the past.

Frequently asked questions

What is CVE-2022-47930?: An issue was discovered in IO FinNet tss-lib before 2.0.0. The parameter ssid for defining a session id is not used through the MPC implementation, which makes replaying and spoofing of messages easier. In particular, the Schnorr proof of knowledge implemented in sch.go does not utilize a session id, context, or random nonce in the generation of the challenge. This could allow a malicious user or an eavesdropper to replay a valid proof sent in the past.
How severe is CVE-2022-47930?: CVE-2022-47930 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2022-47930 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-47930?: CVE-2022-47930 affects Iofinnet Tss-lib. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-47930?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-47930 published?: CVE-2022-47930 was published on 2023-04-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:iofinnet:tss-lib:*:*:*:*:*:*:*:*

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