CVE-2019-25591
DNSS Domain Name Search Software 2.1.8 Denial of Service
DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
DNSS Domain Name Search Software 2.1.8 Denial of Service
DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.
- Record
CVE-2019-25591- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N - CVSS 3.1
- 6.2 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
EUVDEUVD-2019-19924
DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.
- Record
EUVD-2019-19924- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-cc43-7p79-8wx6
DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the...
DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.
- Record
GHSA-cc43-7p79-8wx6- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 6.2 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
NVD
DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.
- Record
CVE-2019-25591- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 6.2 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2019-25591
DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.
- Record
UBUNTU-CVE-2019-25591- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N - CVSS 3.1
- 6.2 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
dnssUbuntu:18.04:LTS |
All versions, plus listed versions 0.0~git20170810.0.860d2af1-1 |
None known |
dnssUbuntu:20.04:LTS |
All versions, plus listed versions 0.0~git20180721.0.2de63ab0-1 |
None known |
dnssUbuntu:Pro:22.04:LTS |
All versions, plus listed versions 0.0~git20200927.0.6aad832e-20.0~git20200927.0.6aad832e-2build10.0~git20200927.0.6aad832e-2ubuntu0.10.0~git20200927.0.6aad832e-2ubuntu0.20.0~git20200927.0.6aad832e-2ubuntu0.30.0~git20200927.0.6aad832e-2ubuntu0.3+esm10.0~git20200927.0.6aad832e-2ubuntu0.3+esm2 |
None known |
dnssUbuntu:Pro:24.04:LTS |
All versions, plus listed versions 0.0~git20230806.0.38ca607c-1build10.0~git20230806.0.38ca607c-1ubuntu0.24.04.10.0~git20230806.0.38ca607c-1ubuntu0.24.04.20.0~git20230806.0.38ca607c-1ubuntu0.24.04.2+esm10.0~git20230806.0.38ca607c-1ubuntu0.24.04.30.0~git20230806.0.38ca607c-1ubuntu0.24.04.3+esm10.0~git20230806.0.38ca607c-1ubuntu0.24.04.3+esm2 |
None known |
dnssUbuntu:25.10 |
All versions, plus listed versions 0.1.0-1 |
None known |
dnssUbuntu:26.10 |
All versions, plus listed versions 0.1.0-1build1 |
None known |
dnssUbuntu:26.04:LTS |
All versions, plus listed versions 0.1.0-10.1.0-1build1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-25591 is a medium vulnerability (CVSS 6.9) in Nsauditor Dnss Domain Name Search Software, published March 22, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.19%, the 8th percentile. No source names a fixed version.