How severe is CVE-2017-1000385?

CVE-2017-1000385 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-2017-1000385 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-1000385?

CVE-2017-1000385 primarily affects Erlang Erlang/otp. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-1000385?

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

When was CVE-2017-1000385 published?

CVE-2017-1000385 was published on 2017-12-12 and last updated on 2026-06-17.

CVE-2017-1000385

CVE-2017-1000385 is a medium-severity vulnerability in Erlang Erlang/otp with a CVSS 3.x base score of 5.9. Its EPSS exploit-prediction score of 22% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-203.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 22% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-203
Affected product: Erlang Erlang/otp
Published: 2017-12-12
Last modified: 2026-06-17

Description

The Erlang otp TLS server answers with different TLS alerts to different error types in the RSA PKCS #1 1.5 padding. This allows an attacker to decrypt content or sign messages with the server's private key (this is a variation of the Bleichenbacher attack).

Frequently asked questions

What is CVE-2017-1000385?: The Erlang otp TLS server answers with different TLS alerts to different error types in the RSA PKCS #1 1.5 padding. This allows an attacker to decrypt content or sign messages with the server's private key (this is a variation of the Bleichenbacher attack).
How severe is CVE-2017-1000385?: CVE-2017-1000385 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-2017-1000385 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-1000385?: CVE-2017-1000385 primarily affects Erlang Erlang/otp. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-1000385?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-1000385 published?: CVE-2017-1000385 was published on 2017-12-12 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:erlang:erlang\/otp:18.3.4.7:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:19.3.6.4:*:*:*:*:*:*:*
cpe:2.3:a:erlang:erlang\/otp:20.1.7:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

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