Common Weakness Enumeration
CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6927 vulnerabilities reference this CWE, most recent first.
CVE-2026-101973 (GCVE-0-2026-101973)
Vulnerability from cvelistv5 – Published: 2026-10-14 16:16 – Updated: 2026-10-14 20:46
VLAI
EPSS
VEX
Title
Junos OS: Malformed packet causes pkid denial of service when certificate re-enrollment is used
Summary
A NULL Pointer Dereference vulnerability in the pkid component of Juniper Networks Junos OS allows an unauthenticated remote attacker to cause a denial of service via a malformed packet received during CMP enrollment or automatic certificate re-enrollment.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 20:36 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA112188 | vendor-advisory |
Impacted products
1 product
| 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) |
Date Public
2026-10-14 16:00
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CVE-2026-101961 (GCVE-0-2026-101961)
Vulnerability from cvelistv5 – Published: 2026-10-14 17:19 – Updated: 2026-10-14 20:26
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: A specific BGP packet causes an rpd crash when an ECMP qualifier is used in an import policy
Summary
A NULL Pointer Dereference vulnerability in the routing-policy nexthop-ECMP matcher of Juniper Networks Junos OS and Junos OS Evolved allows a configured eBGP peer to cause a routing-daemon denial of service via a specific BGP packet received while a nexthop-ecmp qualifier is attached to a BGP import policy.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 19:49 UTC
CWE
- CWE-476 - NULL Pointer Dereference
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-2026-101949 (GCVE-0-2026-101949)
Vulnerability from cvelistv5 – Published: 2026-10-14 17:20 – Updated: 2026-10-14 20:26
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: In a scenario with VPN-flowspec and BMP monitoring a specific BGP update causes an rpd crash
Summary
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated remote BGP neighbor to cause a denial of service via a VPN-flowspec BGP update if it is readvertised and BMP post-policy RIB-out monitoring is configured.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 19:28 UTC
CWE
- CWE-476 - NULL Pointer Dereference
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)
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Date Public
2026-10-14 16:00
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CVE-2026-101948 (GCVE-0-2026-101948)
Vulnerability from cvelistv5 – Published: 2026-10-14 16:18 – Updated: 2026-10-14 20:46
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: A specific BGP FlowSpec update causes an rpd crash when BGP FlowSpec import policy is used
Summary
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a remote unauthenticated BGP peer to cause a denial of service via a specific BGP FlowSpec update received by an affected BGP session.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 20:37 UTC
CWE
- CWE-476 - NULL Pointer Dereference
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:
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:
25.2 , < 25.2R2-S2-EVO
(custom)
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Date Public
2026-10-14 16:00
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CVE-2026-101941 (GCVE-0-2026-101941)
Vulnerability from cvelistv5 – Published: 2026-10-14 16:41 – Updated: 2026-10-14 16:41
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: An attacker causes an rpd crash when routing-policy resolution-map processing and policy event tracing are enabled
Summary
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a configured BGP neighbor to cause a denial of service via a BGP route update when specific routing-policy resolution-map and policy event-tracing configuration is enabled.
Severity
CWE
- CWE-476 - NULL Pointer Dereference
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-2026-101940 (GCVE-0-2026-101940)
Vulnerability from cvelistv5 – Published: 2026-10-14 16:41 – Updated: 2026-10-14 16:41
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: An attacker causes a routing-daemon crash when BGP ISO-VPN egress protection is enabled
Summary
A NULL Pointer Dereference vulnerability in the rpd routing daemon of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated configured BGP peer to cause a denial of service via a BGP UPDATE when ISO-VPN and egress-protection configuration is enabled.
Severity
CWE
- CWE-476 - NULL Pointer Dereference
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)
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Date Public
2026-10-14 16:00
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CVE-2026-101939 (GCVE-0-2026-101939)
Vulnerability from cvelistv5 – Published: 2026-10-14 16:41 – Updated: 2026-10-16 15:31
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: A routing-policy table reference causes routing-daemon denial of service when source-based forwarding is used
Summary
A NULL Pointer Dereference vulnerability in the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows a configured peer sending a BGP UPDATE to cause a denial of service when an import policy with `then source-based-forwarding next-hop next-table <X>` is configured to reference a routing table that does not exist.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 15:21 UTC
CWE
- CWE-476 - NULL Pointer Dereference
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-2026-101302 (GCVE-0-2026-101302)
Vulnerability from cvelistv5 – Published: 2026-10-15 06:53 – Updated: 2026-10-15 13:55
VLAI
EPSS
VEX
Title
Remote DoS via receive-side kernel TLS
Summary
TLS 1.3 embeds the actual record type as the last non-zero byte of the decrypted payload, optionally followed by zero padding. The code which searches for the inner record type had an off-by-one bug which could be triggered by an invalid frame, leading to an underflow followed by an unconditional NULL pointer dereference, causing a kernel panic.
A remote TLS 1.3 peer can send a specially crafted record to trigger a kernel panic, resulting in a Denial of Service (DoS).
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 13:54 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.freebsd.org/advisories/FreeBSD-S… | vendor-advisory |
Impacted products
Date Public
2026-09-29 20:30
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CVE-2026-100895 (GCVE-0-2026-100895)
Vulnerability from cvelistv5 – Published: 2026-09-28 01:15 – Updated: 2026-09-28 13:00
VLAI
EPSS
VEX
Title
Trusted Domain Project OpenARC libopenarc arc-canon.c arc_parse_canon_t null pointer dereference
Summary
A security flaw has been discovered in Trusted Domain Project OpenARC up to 1.0.0.Beta1. Impacted is the function arc_parse_canon_t in the library libopenarc/arc-canon.c of the component libopenarc. The manipulation results in null pointer dereference. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.0.0.Beta0 is recommended to address this issue. Upgrading the affected component is advised.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 12:56 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/410845 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/410845/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-100895 | third-party-advisory |
| https://vuldb.com/submit/917187 | third-party-advisory |
| https://weitongli.com/share/openarc-c-tag-null-de… | exploit |
| https://github.com/trusteddomainproject/OpenARC/r… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Trusted Domain Project | OpenARC |
Affected:
1.0.0.Beta1
Unaffected: 1.0.0.Beta0 cpe:2.3:a:trusted_domain_project:openarc:*:*:*:*:*:*:*:* |
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CVE-2026-100890 (GCVE-0-2026-100890)
Vulnerability from cvelistv5 – Published: 2026-09-28 00:00 – Updated: 2026-09-28 12:55
VLAI
EPSS
VEX
Title
Trusted Domain Project OpenDMARC SPF Parser opendmarc_spf.c opendmarc_spf_ipv6_explode null pointer dereference
Summary
A flaw has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarc_spf_ipv6_explode in the library libopendmarc/opendmarc_spf.c of the component SPF Parser. This manipulation of the argument cp causes null pointer dereference. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 12:55 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/410840 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/410840/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-100890 | third-party-advisory |
| https://vuldb.com/submit/917188 | third-party-advisory |
| https://weitongli.com/share/opendmarc-ip6-wild-po… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Trusted Domain Project | OpenDMARC |
Affected:
1.4.0
Affected: 1.4.1 Affected: 1.4.2 cpe:2.3:a:trusted_domain_project:opendmarc:*:*:*:*:*:*:*:* |
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Mitigation MIT-56
Implementation
For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].
Mitigation
Requirements
Select a programming language that is not susceptible to these issues.
Mitigation
Implementation
Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
Mitigation
Architecture and Design
Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.
Mitigation
Implementation
Explicitly initialize all variables and other data stores, either during declaration or just before the first usage.
No CAPEC attack patterns related to this CWE.