CVE-2021-45926
MDB Tools (aka mdbtools) 0.9.2 has a stack-based buffer overflow (at 0x7ffd0c689be0) in...
MDB Tools (aka mdbtools) 0.9.2 has a stack-based buffer overflow (at 0x7ffd0c689be0) in mdb_numeric_to_string (called from mdb_xfer_bound_data and _mdb_attempt_bind).
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
MDB Tools (aka mdbtools) 0.9.2 has a stack-based buffer overflow (at 0x7ffd0c689be0) in mdb_numeric_to_string (called from mdb_xfer_bound_data and _mdb_attempt_bind).
- Record
CVE-2021-45926- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 4.6 Medium
AV:L/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
MDB Tools (aka mdbtools) 0.9.2 has a stack-based buffer overflow (at 0x7ffd0c689be0) in mdb_numeric_to_string (called from mdb_xfer_bound_data and _mdb_attempt_bind).
- Record
CVE-2021-45926- Updated
- 2026-11-02
EUVDEUVD-2021-32635 No score
MDB Tools (aka mdbtools) 0.9.2 has a stack-based buffer overflow (at 0x7ffd0c689be0) in mdb_numeric_to_string (called from mdb_xfer_bound_data and _mdb_attempt_bind).
- Record
EUVD-2021-32635- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5r57-p55g-m4c3
MDB Tools (aka mdbtools) 0.9.2 has a stack-based buffer overflow (at 0x7ffd0c689be0) in...
MDB Tools (aka mdbtools) 0.9.2 has a stack-based buffer overflow (at 0x7ffd0c689be0) in mdb_numeric_to_string (called from mdb_xfer_bound_data and _mdb_attempt_bind).
- Record
GHSA-5r57-p55g-m4c3- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
OSV
MDB Tools (aka mdbtools) 0.9.2 has a stack-based buffer overflow (at 0x7ffd0c689be0) in mdb_numeric_to_string (called from mdb_xfer_bound_data and _mdb_attempt_bind).
- Record
CVE-2021-45926- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2021-45926
MDB Tools (aka mdbtools) 0.9.2 has a stack-based buffer overflow (at 0x7ffd0c689be0) in mdb_numeric_to_string (called from mdb_xfer_bound_data and _mdb_attempt_bind).
- Record
UBUNTU-CVE-2021-45926- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
mdbtoolsUbuntu:16.04:LTS |
All versions, plus listed versions 0.7.1-4 |
None known |
mdbtoolsUbuntu:18.04:LTS |
All versions, plus listed versions 0.7.1-50.7.1-6 |
None known |
mdbtoolsUbuntu:20.04:LTS |
All versions, plus listed versions 0.7.1-6build1 |
None known |
mdbtoolsUbuntu:22.04:LTS |
All versions, plus listed versions 0.9.4-1ubuntu11.0.0+dfsg-1 |
None known |
mdbtoolsUbuntu:24.04:LTS |
All versions, plus listed versions 1.0.0+dfsg-1.11.0.0+dfsg-1.2build21.0.0+dfsg-1.2ubuntu1 |
None known |
mdbtoolsUbuntu:25.10 |
All versions, plus listed versions 1.0.1-0.1 |
None known |
mdbtoolsUbuntu:26.10 |
All versions, plus listed versions 1.0.1-0.1build1 |
None known |
mdbtoolsUbuntu:26.04:LTS |
All versions, plus listed versions 1.0.1-0.11.0.1-0.1build1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-45926 is a high vulnerability (CVSS 7.8) in Mdbtools Project Mdbtools, published December 31, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.45%, the 38th percentile. No source names a fixed version.
References
github.com/google/oss-fuzz-vulns/blob/main/vulns/mdbtools/OSV-2021-958.yaml
bugs.chromium.org/p/oss-fuzz/issues/detail?id=35972
security.gentoo.org/glsa/202208-12
nvd.nist.gov/vuln/detail/CVE-2021-45926
ubuntu.com/security/CVE-2021-45926
cve.org/CVERecord?id=CVE-2021-45926