How severe is CVE-2020-36315?

CVE-2020-36315 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2020-36315 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-36315?

CVE-2020-36315 affects Relic Project Relic. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-36315?

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

When was CVE-2020-36315 published?

CVE-2020-36315 was published on 2021-04-07 and last updated on 2026-06-17.

CVE-2020-36315

CVE-2020-36315 is a medium-severity vulnerability in Relic Project Relic with a CVSS 3.x base score of 5.3. 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-327.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-327
Affected product: Relic Project Relic
Published: 2021-04-07
Last modified: 2026-06-17

Description

In RELIC before 2020-08-01, RSA PKCS#1 v1.5 signature forgery can occur because certain checks of the padding (and of the first two bytes) are inadequate. NOTE: this requires that a low public exponent (such as 3) is being used. The product, by default, does not generate RSA keys with such a low number.

Frequently asked questions

What is CVE-2020-36315?: In RELIC before 2020-08-01, RSA PKCS#1 v1.5 signature forgery can occur because certain checks of the padding (and of the first two bytes) are inadequate. NOTE: this requires that a low public exponent (such as 3) is being used. The product, by default, does not generate RSA keys with such a low number.
How severe is CVE-2020-36315?: CVE-2020-36315 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2020-36315 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-36315?: CVE-2020-36315 affects Relic Project Relic. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-36315?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-36315 published?: CVE-2020-36315 was published on 2021-04-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:relic_project:relic:*:*:*:*:*:*:*:*

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