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CVE-2020-14928

17
FAUCET Score

CVE-2020-14928 is a medium-severity vulnerability affecting evolution-data-server (eds) versions up to 3.36.3, impacting Canonical, Debian, Fedora, and GNOME products. It involves a STARTTLS buffering issue in SMTP and POP3, where eds incorrectly processes additional server data within a TLS context, leading to a "response injection" vulnerability. The attack requires high attack complexity but can result in high integrity impact, with no confidentiality or availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.36.3CPE matchmatch criteria
cpe:2.3:a:gnome:evolution-data-server:*:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
31CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.81%
Probability of exploitation in next 30 days
EPSS Percentile
85.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0281 is in the 77th percentile among its peer group of 19,955 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: bogofilter-0:1.2.5-2.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: evolution-0:3.28.5-14.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: evolution-data-server-0:3.28.5-14.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: evolution-mapi-0:3.28.3-3.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: openchange-0:2.3-26.el8
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: evolution-data-server

Vendor Advisories (1)

redhatCVE-2020-14928Low

evolution-data-server: Response injection via STARTTLS in SMTP and POP3

Jul 4, 2020

References

bugzilla.suse.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
gitlab.gnome.org / GNOME//evolution-data-server/commit/ba82be72cfd427b5d72ff21f929b3a6d8529c4df
PatchThird Party Advisory
gitlab.gnome.org / GNOME/evolution-data-server/-/commit/f404f33fb01b23903c2bbb16791c7907e457fbac
PatchThird Party Advisory
gitlab.gnome.org / GNOME/evolution-data-server/-/issues/226
ExploitThird Party Advisory
lists.debian.org / debian-lts-announce/2020/07/msg00012.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/QMBEZWA22EAYAZQWUX4KPEBER726KSIG
security-tracker.debian.org / tracker/DLA-2281-1
Third Party Advisory
security-tracker.debian.org / tracker/DSA-4725-1
Third Party Advisory
usn.ubuntu.com / 4429-1
Third Party Advisory
debian.org / security/2020/dsa-4725
Third Party Advisory