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CVE-2021-41033

In all released versions of Eclipse Equinox, at least until version 4.21 (September 2021),...

8.1 High

In all released versions of Eclipse Equinox, at least until version 4.21 (September 2021), installation can be vulnerable to man-in-the-middle attack if using p2 repos that are HTTP; that can then be exploited to serve incorrect p2 metadata and entirely alter the local installation, particularly by installing plug-ins that may then run malicious code.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

1.12%Up 0.7 points since Sep 14, 2021
90%50%10%1%

What each source reports

NVD Score used 8.1

In all released versions of Eclipse Equinox, at least until version 4.21 (September 2021), installation can be vulnerable to man-in-the-middle attack if using p2 repos that are HTTP; that can then be exploited to serve incorrect p2 metadata and entirely alter the local installation, particularly by installing plug-ins that may then run malicious code.

Record
CVE-2021-41033
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-300
Updated
2026-11-02
CVE List No score

In all released versions of Eclipse Equinox, at least until version 4.21 (September 2021), installation can be vulnerable to man-in-the-middle attack if using p2 repos that are HTTP; that can then be exploited to serve incorrect p2 metadata and entirely alter the local installation, particularly by installing plug-ins that may then run malicious code.

Record
CVE-2021-41033
Weakness
CWE-300
Updated
2026-11-02
EUVDEUVD-2021-28186 No score

In all released versions of Eclipse Equinox, at least until version 4.21 (September 2021), installation can be vulnerable to man-in-the-middle attack if using p2 repos that are HTTP; that can then be exploited to serve incorrect p2 metadata and entirely alter the local installation, particularly by installing plug-ins that may then run malicious code.

Record
EUVD-2021-28186
Updated
2026-11-03
GitHub AdvisoriesGHSA-c5fh-3q27-g4r5 No score

In all released versions of Eclipse Equinox, at least until version 4.21 (September 2021),...

In all released versions of Eclipse Equinox, at least until version 4.21 (September 2021), installation can be vulnerable to man-in-the-middle attack if using p2 repos that are HTTP; that can then be exploited to serve incorrect p2 metadata and entirely alter the local installation, particularly by installing plug-ins that may then run malicious code.

Record
GHSA-c5fh-3q27-g4r5
Weakness
CWE-300
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-41033 is a high vulnerability (CVSS 8.1) in Eclipse Equinox, published September 13, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.12%, the 66th percentile. No source names a fixed version.

References

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