CVE-2022-48078Public exploit

Decompiler crash via unbounded recursive AST traversal

Published Feb 6, 2023 · Updated Mar 26, 2025

Stack exhaustion in pycdc commit 44a730f allows context-dependent attackers to crash the decompiler through crafted Python bytecode. ASTree.cpp's BuildFromCode and print_src paths recursively descend nested code and block nodes without bounding recursion, exhausting the process stack. The supplied file must be processed by the command-line decompiler; the demonstrated consequence is an AddressSanitizer abort and loss of that process, not code execution.

CVSS severity9.8
Critical
EPSS probability0.93%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack exhaustion in pycdc commit 44a730f allows context-dependent attackers to crash the decompiler through crafted Python bytecode. ASTree.cpp's BuildFromCode and print_src paths recursively descend nested code and block nodes without bounding recursion, exhausting the process stack. The supplied file must be processed by the command-line decompiler; the demonstrated consequence is an AddressSanitizer abort and loss of that process, not code execution.

The record

CVE
CVE-2022-48078
Published
Feb 6, 2023
Updated
Mar 26, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 26, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write

Public exploit references

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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