Is CVE-2023-28445 actively exploited?

No active exploitation of CVE-2023-28445 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-28445 be exploited remotely?

Yes. CVE-2023-28445 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-28445?

CVE-2023-28445 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-28445

CRITICAL

CVE-2023-28445

CWE-125Published: March 24, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Deno is a runtime for JavaScript and TypeScript that uses V8 and is built in Rust. Resizable ArrayBuffers passed to asynchronous functions that are shrunk during the asynchronous operation could result in an out-of-bound read/write. It is unlikely that this has been exploited in the wild, as the only version affected is Deno 1.32.0. Deno Deploy users are not affected. The problem has been resolved by disabling resizable ArrayBuffers temporarily in Deno 1.32.1. Deno 1.32.2 will re-enable resizable ArrayBuffers with a proper fix. As a workaround, run with `--v8-flags=--no-harmony-rab-gsab` to disable resizable ArrayBuffers.

NVD Source

Risk Analysis

Deno 1.32.0 is susceptible to out-of-bounds read/write operations when handling resizable ArrayBuffers. This critical flaw allows for remote code execution without user interaction.

There is no evidence of exploitation in the wild, and it is not in the CISA KEV. It is remotely exploitable.

Recommended Action

Upgrade to Deno 1.32.1 or later, or use the workaround flag --v8-flags=--no-harmony-rab-gsab.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-28445 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.