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CVE-2016-10727· NVD / CVE Program· CNA mitre

camel/providers/imapx/camel-imapx-server.c in the IMAPx component in GNOME evolution-data-server before 3.21.2 proceeds with cleartext data

camel/providers/imapx/camel-imapx-server.c in the IMAPx component in GNOME evolution-data-server before 3.21.2 proceeds with cleartext data containing a password if the client wishes to use STARTTLS but the server will not use STARTTLS, which makes it easier for remote attackers to obtain sensitive information by sniffing the network. The server code was intended to report an error and not proceed, but the code was written incorrectly.

CriticalCVSS 9.8 · v3.0—No exploit Fix available
Published
Jul 20, 2018
Updated
Jun 16, 2026
EPSS
2.9% · 86th percentile
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Report tools

JSON

Action score

40

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.9%

Noroxi analysis

No Noroxi analysis for this record yet

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Affected systems

VendorProduct
gnomeevolution
canonicalubuntu linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • canonical ubuntu linux14.04
  • canonical ubuntu linux16.04
  • gnome evolutionbefore 3.21.2

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12evolution-data-serverbefore 3.22.0-23.22.0-2
Debian:8evolution-data-serverbefore 3.12.9~git20141128.5242b0-2+deb8u43.12.9~git20141128.5242b0-2+deb8u4
Red Hat:enterprise_linux:7::clientevolution-data-serverbefore 0:3.12.11-37.el70:3.12.11-37.el7
Red Hat:enterprise_linux:7::clientevolution-data-server-debuginfobefore 0:3.12.11-37.el70:3.12.11-37.el7
Red Hat:enterprise_linux:7::clientevolution-data-server-develbefore 0:3.12.11-37.el70:3.12.11-37.el7
Red Hat:enterprise_linux:7::clientevolution-data-server-docbefore 0:3.12.11-37.el70:3.12.11-37.el7
Red Hat:enterprise_linux:7::clientevolution-ewsbefore 0:3.12.11-9.el70:3.12.11-9.el7
Red Hat:enterprise_linux:7::clientevolution-ews-debuginfobefore 0:3.12.11-9.el70:3.12.11-9.el7
Red Hat:enterprise_linux:7::clientevolution-mapibefore 0:3.12.10-5.el70:3.12.10-5.el7
Red Hat:enterprise_linux:7::clientevolution-mapi-debuginfobefore 0:3.12.10-5.el70:3.12.10-5.el7
Red Hat:enterprise_linux:7::clientevolution-mapi-develbefore 0:3.12.10-5.el70:3.12.10-5.el7
Red Hat:enterprise_linux:7::clientopenchangebefore 0:2.3-2.el70:2.3-2.el7
Red Hat:enterprise_linux:7::clientopenchange-clientbefore 0:2.3-2.el70:2.3-2.el7
Red Hat:enterprise_linux:7::clientopenchange-debuginfobefore 0:2.3-2.el70:2.3-2.el7
Red Hat:enterprise_linux:7::clientopenchange-develbefore 0:2.3-2.el70:2.3-2.el7
Red Hat:enterprise_linux:7::clientopenchange-devel-docsbefore 0:2.3-2.el70:2.3-2.el7

Same product

gnome: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-12422addressbook/backends/ldap/e-book-backend-ldap.c in Evolution-Data-Server in GNOME Evolution through 3.29.2 might allow attackers to trigger
    40Plan
  • CVE-2005-0102Integer overflow in camel-lock-helper in Evolution 2.0.2 and earlier allows local users or remote malicious POP3 servers to execute arbitrar
    40Plan
  • CVE-2008-1109Heap-based buffer overflow in Evolution 2.22.1 allows user-assisted remote attackers to execute arbitrary code via a long DESCRIPTION proper
    39Monitor
  • CVE-2008-1108Buffer overflow in Evolution 2.22.1, when the ITip Formatter plugin is disabled, allows remote attackers to execute arbitrary code via a lon
    32Monitor
  • CVE-2009-3721Multiple directory traversal and buffer overflow vulnerabilities were discovered in yTNEF, and in Evolution's TNEF parser that is derived fr
    31Monitor
  • CVE-2013-4166The gpg_ctx_add_recipient function in camel/camel-gpg-context.c in GNOME Evolution 3.8.4 and earlier and Evolution Data Server 3.9.5 and ear
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:evolution-data-server3.22.0-2 · Debian:12Package registry (OSV)
red hat:evolution-data-server0:3.12.11-37.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:evolution-data-server-debuginfo0:3.12.11-37.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:evolution-data-server-devel0:3.12.11-37.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:evolution-data-server-doc0:3.12.11-37.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:evolution-ews0:3.12.11-9.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:evolution-ews-debuginfo0:3.12.11-9.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:evolution-mapi-debuginfo0:3.12.10-5.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:evolution-mapi-devel0:3.12.10-5.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:openchange-client0:2.3-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:openchange-debuginfo0:2.3-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:openchange-devel0:2.3-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:openchange-devel-docs0:2.3-2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

The bug in code

The whole CWE-200 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

json
{  "permissions": ["tabs", "<all_urls>"],  "background": { "service_worker": "analytics.js" }}

Fixed

json
{  "permissions": ["activeTab"],  "host_permissions": ["https://yildiz.example/*"]}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records