CVE-2023-34453

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.71% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 75.3% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2023-06-15 16:12Z3 YR AGO

Last updated

2024-12-12 16:27Z1 YR AGO

Reserved

2023-06-06

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.9)

CNA CVSS vector

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

Weaknesses

• CWE-190Integer Overflow or WraparoundBase

Data version

5.1

Document digest

d7133548c4cffeff3b7123ac0afd45eff18df93273abee822e0d3c2ee04d4820

• github.comhttps://github.com/xerial/snappy-java/security/advisories/GHSA-pqr6-cmr2-h8hfx_refsource_CONFIRM
• github.comhttps://github.com/xerial/snappy-java/commit/820e2e074c58748b41dbd547f4edba9e108ad905x_refsource_MISC
• github.comhttps://github.com/xerial/snappy-java/blob/05c39b2ca9b5b7b39611529cc302d3d796329611/src/main/java/org/xerial/snappy/BitShuffle.java#L107x_refsource_MISC
• github.comhttps://github.com/xerial/snappy-java/blob/master/src/main/java/org/xerial/snappy/BitShuffle.javax_refsource_MISC