How severe is CVE-2010-3843?

CVE-2010-3843 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2010-3843 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-3843?

CVE-2010-3843 affects Ettercap-project Ettercap. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2010-3843?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2010-3843 published?

CVE-2010-3843 was published on 2021-05-28 and last updated on 2026-06-16.

CVE-2010-3843

CVE-2010-3843 is a high-severity vulnerability in Ettercap-project Ettercap with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Ettercap-project Ettercap
Published: 2021-05-28
Last modified: 2026-06-16

Description

The GTK version of ettercap uses a global settings file at /tmp/.ettercap_gtk and does not verify ownership of this file. When parsing this file for settings in gtkui_conf_read() (src/interfacesgtk/ec_gtk_conf.c), an unchecked sscanf() call allows a maliciously placed settings file to overflow a statically-sized buffer on the stack.

Frequently asked questions

What is CVE-2010-3843?: The GTK version of ettercap uses a global settings file at /tmp/.ettercap_gtk and does not verify ownership of this file. When parsing this file for settings in gtkui_conf_read() (src/interfacesgtk/ec_gtk_conf.c), an unchecked sscanf() call allows a maliciously placed settings file to overflow a statically-sized buffer on the stack.
How severe is CVE-2010-3843?: CVE-2010-3843 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2010-3843 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-3843?: CVE-2010-3843 affects Ettercap-project Ettercap. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2010-3843?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2010-3843 published?: CVE-2010-3843 was published on 2021-05-28 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:ettercap-project:ettercap:0.7.3:*:*:*:*:*:*:*

More vulnerabilities in Ettercap-project Ettercap

CVE-2010-3844 — High (CVSS 8.8): An unchecked sscanf() call in ettercap before 0.7.5 allows an insecure temporary settings file to overflow a…
CVE-2014-9379 — High (CVSS 7.5): The radius_get_attribute function in dissectors/ec_radius.c in Ettercap 0.8.1 performs an incorrect cast, which allows…
CVE-2014-9378 — High (CVSS 7.5): Ettercap 0.8.1 does not validate certain return values, which allows remote attackers to cause a denial of service…
CVE-2014-9377 — High (CVSS 7.5): Heap-based buffer overflow in the nbns_spoof function in plug-ins/nbns_spoof/nbns_spoof.c in Ettercap 0.8.1 allows…
CVE-2014-9376 — High (CVSS 7.5): Integer underflow in Ettercap 0.8.1 allows remote attackers to cause a denial of service (out-of-bounds write) and…
CVE-2014-6396 — High (CVSS 7.5): The dissector_postgresql function in dissectors/ec_postgresql.c in Ettercap before 0.8.1 allows remote attackers to…

All CVEs affecting Ettercap-project Ettercap →

Other CWE-787 (Out-of-bounds Write) vulnerabilities

CVE-2026-42369 — Critical (CVSS 10.0): GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other…
CVE-2026-4746 — Critical (CVSS 10.0): Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is…
CVE-2025-43300 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS…
CVE-2025-24201 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in…
CVE-2024-42479 — Critical (CVSS 10.0): llama.cpp provides LLM inference in C/C++. The unsafe `data` pointer member in the `rpc_tensor` structure can cause…
CVE-2024-39791 — Critical (CVSS 10.0): Stack-based buffer overflow vulnerabilities affecting Vonets industrial wifi bridge relays and wifi bridge…

Browse all CWE-787 (Out-of-bounds Write) vulnerabilities →