CVE-2022-23066Network attack vector

Incorrect execution via sdiv32 sign extension

Published May 9, 2022 · Updated Sep 16, 2024

Incorrect Calculation in Solana Labs Solana RBPF 0.2.26 through 0.2.27 allows remote attackers to alter smart-contract execution via sdiv32. The JIT compiler stores a 32-bit signed-division result in a 64-bit register without sign extension, so later 64-bit tests can take the wrong branch. An attacker able to supply or trigger execution of crafted eBPF contract code can cause incorrect transfers or protocol-liveness failures; the bug is fixed in 0.2.28.

CVSS severity9.1
Critical
EPSS probability2.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect Calculation in Solana Labs Solana RBPF 0.2.26 through 0.2.27 allows remote attackers to alter smart-contract execution via sdiv32. The JIT compiler stores a 32-bit signed-division result in a 64-bit register without sign extension, so later 64-bit tests can take the wrong branch. An attacker able to supply or trigger execution of crafted eBPF contract code can cause incorrect transfers or protocol-liveness failures; the bug is fixed in 0.2.28.

The record

CVE
CVE-2022-23066
Published
May 9, 2022
Updated
Sep 16, 2024
Vendor
Solana Labs
Product
Solana RBPF
Classifications
CWE-682
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 9, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.2.26 <unspecified
  2. Affected versionversion=unspecified <=0.2.27

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Solana Labs · Solana RBPFversion=0.2.26 <unspecified; version=unspecified <=0.2.27

Published CVSS scores

7.8NVDAV:N/AC:L/Au:N/C:N/I:P/A:P
9.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-682Incorrect Calculation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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