Common Weakness Enumeration
CWE-121
AllowedStack-based Buffer Overflow
Abstraction: Variant · Status: Draft
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
6050 vulnerabilities reference this CWE, most recent first.
CVE-2026-101982 (GCVE-0-2026-101982)
Vulnerability from cvelistv5 – Published: 2026-10-14 17:17 – Updated: 2026-10-16 14:18
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: A EVPN peer causes an rpd crash or root-level compromise when EVPN-VPWS is used
Summary
A Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured BGP/EVPN peer to cause root code execution on Junos OS or an rpd crash on Junos OS Evolved via protocol-valid route advertisements for an EVPN-VPWS service.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 03:56 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA112187 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7.7
(custom)
Affected: 23.4 , < 23.4R2-S8.13 (custom) Affected: 24.2 , < 24.2R2-S5.5 (custom) Affected: 24.4 , < 24.4R2-S5 (custom) Affected: 25.2 , < 25.2R2-S2 (custom) Affected: 25.4 , < 25.4R1-S3 (custom) Affected: 26.2 , < 26.2R1-S2 (custom) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 23.2R2-S7.7-EVO
(custom)
Affected: 23.4 , < 23.4R2-S8.11-EVO (custom) Affected: 24.2 , < 24.2R2-S5.6-EVO (custom) Affected: 24.4 , < 24.4R2-S5-EVO (custom) Affected: 25.2 , < 25.2R2-S2-EVO (custom) Affected: 25.4 , < 25.4R1-S3-EVO (custom) Affected: 26.2 , < 26.2R1-S2-EVO (custom) Affected: 23.4X100 (custom) Affected: 25.2X100 , < 25.2X100-D35-EVO (custom) Affected: 25.4X300 , < 25.4X300-D40-EVO (custom) |
Date Public
2026-10-14 16:00
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CVE-2026-101981 (GCVE-0-2026-101981)
Vulnerability from cvelistv5 – Published: 2026-10-14 17:16 – Updated: 2026-10-16 14:18
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: An adjacent LDP peer causes routing-engine compromise when LDP is enabled
Summary
A Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent LDP peer to cause an rpd crash or execute arbitrary code via a malformed LDP Label Mapping message.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 03:56 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA112187 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
23.4 , < 23.4R2-S8.13
(custom)
Affected: 24.2 , < 24.2R2-S5.5 (custom) Affected: 24.4 , < 24.4R2-S5 (custom) Affected: 25.2 , < 25.2R2-S2 (custom) Affected: 25.4 , < 25.4R1-S3 (custom) Affected: 26.2 , < 26.2R1-S2 (custom) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
23.4 , < 23.4R2-S8.11-EVO
(custom)
Affected: 24.2 , < 24.2R2-S5.6-EVO (custom) Affected: 24.4 , < 24.4R2-S5-EVO (custom) Affected: 25.2 , < 25.2R2-S2-EVO (custom) Affected: 25.4 , < 25.4R1-S3-EVO (custom) Affected: 26.2 , < 26.2R1-S2-EVO (custom) Affected: 23.4X100 (custom) Affected: 25.2X100 , < 25.2X100-D35-EVO (custom) Affected: 25.4X300 , < 25.4X300-D40-EVO (custom) |
Date Public
2026-10-14 16:00
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CVE-2026-101979 (GCVE-0-2026-101979)
Vulnerability from cvelistv5 – Published: 2026-10-14 17:16 – Updated: 2026-10-15 03:57
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: A network attacker causes root-level code execution or denial of service when SNMP and AAA are enabled
Summary
A Stack-based Buffer Overflow vulnerability in the authd Juniper Networks Junos OS and Junos OS Evolved allows a network attacker with SNMP read access to execute code with root privileges or cause a denial of service via a specific SNMP packet, when SNMP and AAA are enabled.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 00:00 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA112187 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7.7
(custom)
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|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 23.2R2-S7.7-EVO
(custom)
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Date Public
2026-10-14 16:00
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CVE-2026-101955 (GCVE-0-2026-101955)
Vulnerability from cvelistv5 – Published: 2026-10-14 16:28 – Updated: 2026-10-16 14:18
VLAI
EPSS
VEX
Title
Junos OS: SRX Series: Malformed DNS packet causes service disruption when UTM Anti-Spam SBL is used
Summary
A Stack-based Buffer Overflow vulnerability in the UTM Anti-Spam SBL of Juniper Networks Junos OS on SRX series allows an unauthenticated remote attacker to cause arbitrary code execution or a denial of service via a injected malformed DNS packet when Anti-Spam SBL inspection is enabled.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 03:56 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA112186 | vendor-advisory |
Impacted products
1 product
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|---|---|---|---|
| Juniper Networks | Junos OS |
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Date Public
2026-10-14 16:00
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CVE-2026-101354 (GCVE-0-2026-101354)
Vulnerability from cvelistv5 – Published: 2026-09-29 01:00 – Updated: 2026-09-29 10:45
VLAI
EPSS
VEX
Title
FAST FAC1203R MmtAtePrase _tWlanTask stack-based overflow
Summary
A security flaw has been discovered in FAST FAC1203R 20200116_2.0.4. The affected element is the function _tWlanTask of the component MmtAtePrase Parser. Performing a manipulation results in stack-based buffer overflow. The attacker must have access to the local network to execute the attack. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
9.6 (Critical)
9.6 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 10:45 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/411088 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/411088/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-101354 | third-party-advisory |
| https://vuldb.com/submit/927238 | third-party-advisory |
| https://github.com/xiaobor123/vuls-find-VxWorks/t… | exploit |
Impacted products
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CVE-2026-101341 (GCVE-0-2026-101341)
Vulnerability from cvelistv5 – Published: 2026-10-14 10:56 – Updated: 2026-10-14 14:08
VLAI
EPSS
VEX
Title
Stack overwrite from specially formatted TXT-DATA RDATA field
Summary
Tokens of text in RDATA (of for example TXT records) under 32 bytes are not checked to stay within the space reserved for the RDATA allowing for arbitrary sized out of bound stack writes, including an overwrite of a callback function pointer which is called directly after parse. Zone files which are written out by NSD itself, such for zones for which the NSD instance is secondary, will not be formatted like this. The zone file must be fed to NSD directly, (but it could come, for example, from an operator controlled provisioning system).
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 14:08 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
NLnet Labs
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.nlnetlabs.nl/downloads/nsd/CVE-2026-1… | vendor-advisory |
Impacted products
1 product
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Affected:
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|
Date Public
2026-10-14 12:00
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CVE-2026-101339 (GCVE-0-2026-101339)
Vulnerability from cvelistv5 – Published: 2026-10-14 10:56 – Updated: 2026-10-14 14:08
VLAI
EPSS
VEX
Title
Stack overwrite from a specially crafted and formatted HIP RR
Summary
A HIP resource record that fills the RDATA near or at is limit, and has another dname RDATA field (a HIP Rendezvous server) can overwrite the stack with up to 191 bytes of attacker controlled data. Zone files which are written out by NSD itself, such as for zones for which the NSD instance is secondary, will not be formatted like this. The zone file must be fed to NSD directly, (but it could come, for example, from an operator controlled provisioning system).
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 14:08 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
NLnet Labs
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.nlnetlabs.nl/downloads/nsd/CVE-2026-1… | vendor-advisory |
Impacted products
1 product
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|---|---|---|---|
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|
Date Public
2026-10-14 12:00
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CVE-2026-101338 (GCVE-0-2026-101338)
Vulnerability from cvelistv5 – Published: 2026-10-14 10:56 – Updated: 2026-10-14 14:09
VLAI
EPSS
VEX
Title
Stack overwrite from a specially crafted and formatted SVCB or HTTPS RR
Summary
When a SVCB or HTTPS RR has filled the wire format RDATA up to the brim, another ECH parameter may overwrite the stack, and once beyond the limit, the base64 decoder can write attacker controlled data of unlimited size. Zone files which are written out by NSD itself, such as for zones for which the NSD instance is secondary, will not be formatted like this. The zone file must be fed to NSD directly, (but it could come, for example, from an operator controlled provisioning system).
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 14:09 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
NLnet Labs
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.nlnetlabs.nl/downloads/nsd/CVE-2026-1… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| NLnet Labs | NSD |
Affected:
4.10.0 , < 4.15.3
(semver)
|
Date Public
2026-10-14 12:00
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CVE-2026-101337 (GCVE-0-2026-101337)
Vulnerability from cvelistv5 – Published: 2026-10-14 10:56 – Updated: 2026-10-14 14:09
VLAI
EPSS
VEX
Title
Stack overwrite from specially formatted base64 RDATA field
Summary
When base64 data is split up in pieces, of 3 character or less, tokens were incorrectly calculated to produce 0 bytes. This enables attackers to overwrite the stack with up to 64K of attacker controlled data. Zone files which are written out by NSD itself, such as for zones for which the NSD instance is secondary, will not be formatted like this. The zone file must be fed to NSD directly, (but it could come, for example, from an operator controlled provisioning system).
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 14:09 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
NLnet Labs
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.nlnetlabs.nl/downloads/nsd/CVE-2026-1… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| NLnet Labs | NSD |
Affected:
4.10.0 , < 4.15.3
(semver)
|
Date Public
2026-10-14 12:00
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CVE-2026-101081 (GCVE-0-2026-101081)
Vulnerability from cvelistv5 – Published: 2026-09-28 16:15 – Updated: 2026-09-28 16:47
VLAI
EPSS
VEX
Title
D-Link DI-8400 Web Administration Service menu_nat_more.asp menu_nat_more_asp stack-based overflow
Summary
A security flaw has been discovered in D-Link DI-8400 16.07. This vulnerability affects the function menu_nat_more_asp of the file menu_nat_more.asp of the component Web Administration Service. The manipulation of the argument opt results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks.
Severity
9.1 (Critical)
9.1 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 16:47 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/410953 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/410953/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-101081 | third-party-advisory |
| https://vuldb.com/submit/932318 | third-party-advisory |
| https://github.com/Vivi-Xray/Xray-s-cve-/blob/mai… | related |
| https://github.com/Vivi-Xray/Xray-s-cve-/blob/mai… | exploit |
| https://www.dlink.com/ | product |
Impacted products
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Mitigation MIT-10
Operation
Build and Compilation
Strategy: Environment Hardening
- Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
- D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation
Architecture and Design
Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation
Implementation
Implement and perform bounds checking on input.
Mitigation
Implementation
Do not use dangerous functions such as gets. Use safer, equivalent functions which check for boundary errors.
Mitigation MIT-11
Operation
Build and Compilation
Strategy: Environment Hardening
- Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
- Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
- For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
No CAPEC attack patterns related to this CWE.