In Enigmail below 2.1, an attacker in possession of PGP encrypted emails can wrap them as sub-parts within a crafted multipart email
Published Aug 5, 2019
6.5
MEDIUMCVSS 3.1
EPSS 1.03%
Description
In Enigmail below 2.1, an attacker in possession of PGP encrypted emails can wrap them as sub-parts within a crafted multipart email. The encrypted part(s) can further be hidden using HTML/CSS or ASCII newline characters. This modified multipart email can be re-sent by the attacker to the intended receiver. If the receiver replies to this (benign looking) email, he unknowingly leaks the plaintext of the encrypted message part(s) back to the attacker. This attack variant bypasses protection mechanisms implemented after the "EFAIL" attacks.
Affected products
No data.
Configuration 2
- 30
- 31
- 32
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.03% (0.01031) | 62.51th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.04% (0.01037) | 59.30th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.18% (0.00183) | 37.77th | v4 (v2025.03.14) |
| Dec 17, 2024 | 0.24% (0.00244) | 63.57th | v3 (v2023.03.01) |
| May 3, 2024 | 0.25% (0.00251) | 64.86th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.25% (0.00251) | 62.82th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.12% (0.00116) | 43.83th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 9.19% (0.09187) | 87.06th | v2 (v2022.01.01) |
| Feb 3, 2022 | 5.36% (0.05363) | 79.74th | v1 |
| Jan 6, 2022 | 5.36% (0.05363) | 79.54th | v1 |
| Jan 5, 2022 | 1.25% (0.01247) | 69.74th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.25% (0.01247) | 0.00th | v1 |
References (5)
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AVNTEF3WSOOQYKMIPEH7F77UPXES5BU5/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CYWBJHSBBLAHKMRWDWH2XXQDYAGDHB5I/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GHC5WDQ47FQSL5CTGQUYIHVC3RNZ7UH5/ vendor-advisoryx_refsource_FEDORA
- https://sourceforge.net/p/enigmail/bugs/984/ x_refsource_MISCExploitIssue TrackingThird Party Advisory
- https://www.enigmail.net/index.php/en/download/changelog x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AVNTEF3WSOOQYKMIPEH7F77UPXES5BU5/ | vendor-advisoryx_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CYWBJHSBBLAHKMRWDWH2XXQDYAGDHB5I/ | vendor-advisoryx_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GHC5WDQ47FQSL5CTGQUYIHVC3RNZ7UH5/ | vendor-advisoryx_refsource_FEDORA | |
| https://sourceforge.net/p/enigmail/bugs/984/ | x_refsource_MISCExploitIssue TrackingThird Party Advisory | |
| https://www.enigmail.net/index.php/en/download/changelog | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.