Is CVE-2023-31442 in the CISA KEV catalog?

No. CVE-2023-31442 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-31442?

CVE-2023-31442 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2023-31442?

CVE-2023-31442 has an EPSS score of 0.65% (46th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-31442?

Upgrade akka actor to 2.8.1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2023-31442

HIGH

7.5

CVSS v3

NVD

Description

In Lightbend Akka before 2.8.1, the async-dns resolver (used by Discovery in DNS mode and transitively by Cluster Bootstrap) uses predictable DNS transaction IDs when resolving DNS records, making DNS resolution subject to poisoning by an attacker. If the application performing discovery does not validate (e.g., via TLS) the authenticity of the discovered service, this may result in exfiltration of application data (e.g., persistence events may be published to an unintended Kafka broker). If such validation is performed, then the poisoning constitutes a denial of access to the intended service. This affects Akka 2.5.14 through 2.8.0, and Akka Discovery through 2.8.0.

How to fix

Remediation Available

akka actorNVD

Affected:>= 2.5.14, < 2.8.1Fixed in:2.8.1CVE-2023-31442derived from NVD

akka discoveryNVD

Affected:< 2.8.1Fixed in:2.8.1CVE-2023-31442derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.65%probability of exploitation in 30 days

46thpercentile

Moderate risk: more likely to be exploited than 46% of all known CVEs.

References

Vendor Advisory1

akka.io

Product1

lightbend.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-01-27.