CVE-2022-21699: Execution with Unnecessary Privileges in ipython

Recommended actionWithin 7 days

High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available

What, why and how

IPython (Interactive Python) is a command shell for interactive computing in multiple programming languages, originally developed for the Python programming language. Affected versions are subject to an arbitrary code execution vulnerability achieved by not properly managing cross user temporary files. This vulnerability allows one user to run code as another on the same machine. All users are advised to upgrade.

What

Why

The product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may execute code or commands in the affected security context.

What

Why

The product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may execute code or commands in the affected security context.

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path: local access → Execution with Unnecessary Privileges → execute code or commands in the affected security context
Attack surface: Local
Privileges required: Low: a basic authenticated account is required
User interaction: Required interaction required
Attack complexity: Low: no specialised conditions are recorded
Security boundary: Changed: exploitation can affect a different security authority
Weakness ? CWE means Common Weakness Enumeration: a standard category for the underlying weakness.: CWE-250 ↗
CWE-250: Execution with Unnecessary Privileges. The product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses.
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SChangedScope: The attack can affect a component governed by a different security authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land: After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.

Remote code executionCWE-250Public exploit reference

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2022-0126Official EUVD mapping

0 linked advisory records.

Official EUVD record

BSI · German · WID-SEC-W-2024-0064Juniper Produkte: Mehrere Schwachstellen

Ein Angreifer aus dem angrenzenden Netzwerk oder ein entfernter, anonymer, authentisierter, lokaler oder physischer Angreifer kann mehrere Schwachstellen in Juniper JUNOS, Juniper JUNOS Evolved, Juniper SRX Series, Juniper EX Series, Juniper QFX Series, Juniper ACX Series, Juniper PTX Series und Juniper MX Series ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand herbeizuführen und seine Berechtigungen zu erweitern.

Official advisory

CERT-FR · French · CERTFR-2024-AVI-1103Multiples vulnérabilités dans les produits IBM

e.org/CVERecord?id=CVE-2021-45960 Référence CVE CVE-2021-46848 https://www.cve.org/CVERecord?id=CVE-2021-46848 Référence CVE CVE-2022-0561 https://www.cve.org/CVERecord?id=CVE-2022-0561 Référence CVE CVE-2022-0562 https://www.cve.org/CVERecord?id=CVE-2022-0562 Référence CVE CVE-2022-0891 https://www.cve.org/CVERecord?id=CVE-2022-0891 Référence CVE CVE-2022-0908 https://www.cve.org/CVERecord?id=CVE-2022-0908 Référence CVE CVE-2022-2056 https://www.cve.org/CVERecord?id=CVE-2022-2056 Référence CVE CVE-2022-2057 https://www.cve.org/CVERecord?id=CVE-2022-2057 Référence CVE CVE-2022-2058 https://www.cve.org/CVERecord?id=CVE-2022-2058 Référence CVE CVE-2022-21699 https://www.cve.org/CVERecord?id=CVE-2022-21699 Référence CVE CVE-2022-22823 https://www.cve.org/CVERecord?id=CVE-2022-22823 Référence CVE CVE-2022-22824 https://www.cve.org/CVERecord?id=CVE-2022-22824 Référence CVE CVE-2022-22825 https://www.cve.org/CVERecord?id=CVE-2022-22825 Référence CVE CVE-2022-22826 https://www.cve.org/CVERecord?id=CVE-2022-22826 Référence CVE CVE-2022-22827 https://www.cve.org/CVERecord?id=CVE-2022-22827 Référence CVE CVE-2022-22844 https://www.cve.org/CVERecord?id=CVE-2022-22844 Référence CVE CVE-2022-23852 https://www.cve.org/CVERecord?id=CVE-2022-23852 Référence CVE CVE-2022-23990 https://www.cve.org/CVERecord?id=

Official advisory

CERT-FR · French · CERTFR-2024-AVI-0027Multiples vulnérabilités dans les produits Juniper Networks

es correctifs (cf. section Documentation). Documentation Bulletin de sécurité Juniper JSA11272 du 10 janvier 2024 https://supportportal.juniper.net/s/article/2022-01-Security-Bulletin-Junos-OS-Evolved-Telnet-service-may-be-enabled-when-it-is-expected-to-be-disabled-CVE-2022-22164 Bulletin de sécurité Juniper JSA75233 du 10 janvier 2024 https://supportportal.juniper.net/s/article/2024-01-Security-Bulletin-Session-Smart-Router-Multiple-vulnerabilities-resolved Bulletin de sécurité Juniper JSA75721 du 10 janvier 2024 https://supportportal.juniper.net/s/article/2024-01-Security-Bulletin-Junos-OS-Evolved-IPython-privilege-escalation-vulnerability-CVE-2022-21699 Bulletin de sécurité Juniper JSA75723 du 10 janvier 2024 https://supportportal.juniper.net/s/article/2024-01-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-rpd-process-crash-due-to-BGP-flap-on-NSR-enabled-devices-CVE-2024-21585 Bulletin de sécurité Juniper JSA75725 du 10 janvier 2024 https://supportportal.juniper.net/s/article/2024-01-Security-Bulletin-Junos-OS-Memory-leak-in-bbe-smgd-process-if-BFD-liveness-detection-for-DHCP-subscribers-is-enabled-CVE-2024-21587 Bulletin de sécurité Juniper JSA75727 du 10 janvier 2024 https://supportportal.juniper.net/s/article/2024-01-Security-Bulletin-Paragon-Active-Assurance-Control-Center-Information-

Official advisory

Patch and workaround

Operational remediation based on structured source evidence.

Status ? Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.: Patch available
Affected: < 5.11; >= 6.0.0, < 7.16.3; >= 7.17.0, < 7.31.1; >= 8.0.0, < 8.0.1
Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action: Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround: No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.

Evidence and provenance

Published 19 Jan 2022 · Last source change 22 Apr 2025, 18:33 UTC · CWE-250 · Execution with Unnecessary Privileges

CVE recordCVE.org · 5.1

CVSS sourceCNA

EPSS source

The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.

FIRST · tracked since 2026-08-14

European sourceENISA EUVD · EUVD-2022-0126

Product sourceCNA

Remediation sourceCVE/CNA references

CWE sourceCNA

NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

2022-01-19CVE published

2025-04-22Fixed release or patch reference recorded

ENISA EUVD · EUVD-2022-0126↗CISA Vulnrichment SSVC evidence↗Patch or update reference↗Public exploit reference↗Official CVE record (CNA and ADP data)↗NVD record↗

Technical terms and abbreviations used in this report

CVE: Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS: Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS: Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE: Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA: CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP: Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD: National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT: A computer security incident response team that publishes warnings or coordinates incident response.
PoC: Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF: Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL: Living off the land: abuse of legitimate tools or system functions during an attack.

Execution with Unnecessary Privileges in ipython

National CERT insights
?
CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

ENISA European Vulnerability Database

EUVD-2022-0126

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

What changed after publication

Execution with Unnecessary Privileges in ipython

National CERT insights ?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

EUVD-2022-0126

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

National CERT insights
?
CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.